타일 시멘트 계산기 – 압착 모르타르 필요 수량 계산

Q: 압착시멘트 1포대(25kg)로 몇 평(m²)을 시공할 수 있나요?

흙손 톱니 크기에 따라 다릅니다. 6mm 흙손 기준 약 5~7m², 대형 타일용 10~12mm 흙손 기준 약 3~4.5m²를 시공할 수 있습니다.

Q: 600×600mm 대형 타일에는 어떤 흙손을 써야 하나요?

최소 10mm 이상의 사각 톱니 흙손을 사용해야 하며, 타일 뒷면에 얇게 펴 바르는 배면도포(백버터링)가 필수적입니다.

Q: 타일을 비벼 넣은 후 최종 몰탈 두께는?

타일을 눌러 안착시키면 톱니 밥이 찌그러지며 최초 톱니 높이의 약 절반인 3~5mm 두께가 형성됩니다.

Q: 배면도포를 하면 몰탈 소요량이 늘어나나요?

네, 타일 뒷면을 긁어주는 평탄 도포로 인해 자재 소요량이 약 15~20% 증가합니다.

Q: 물은 얼마나 넣고 믹싱해야 하나요?

일반적으로 25kg 한 포당 5~6리터의 깨끗한 물을 사용하며 제조사 권장비를 반드시 준수해야 합니다.

Q: 개량형(폴리머) 시멘트의 장점은 무엇인가요?

합성수지 분말이 포함되어 흡수율이 낮은 포세린 타일에도 우수한 부착력과 탄성을 제공합니다.

Q: 디트라(DITRA) 시트 위에도 시공 가능한가요?

네, 시트를 바닥에 고정하는 1차 도포와 타일을 얹는 2차 도포 모두 압착시멘트를 사용합니다.

Q: 줄눈(메지) 시공까지 몇 시간 양생해야 하나요?

일반 압착은 24시간 양생 후 줄눈 시공 및 보행이 가능하며, 급결 제품은 3~4시간 후 가능합니다.

Q: 소량만 덜어서 믹싱해도 되나요?

네, 저울을 이용하여 가루와 물을 동일한 중량 비율로 계량하면 문제없이 혼합할 수 있습니다.

Q: 압착시멘트 최대 시공 두께는?

일반 압착 공법은 6mm 이내입니다. 단차가 심할 경우 중후비 압착몰탈을 사용해야 합니다.

무료 타일 압착 모르타르 계산기

타일 계산기 사용 방법

6단계의 손쉬운 설정으로 오차 없는 정확한 자재 소요량을 산출합니다.

1 Step 1

1. 시공 면적 측정

가로 × 세로를 입력하거나 평수/제곱미터를 직접 입력하여 총 면적을 산출합니다.

Tip: Measure niches, tub aprons and steps separately.

Step details: 1–6 Steps

1

Step 01

1. 시공 면적 측정

가로 × 세로를 입력하거나 평수/제곱미터를 직접 입력하여 총 면적을 산출합니다.

Step 1

2

Step 02

2. 타일 규격 선택

모자이크, 300각, 600각, 대형 박판 타일 등 규격을 선택하여 흙손 크기를 결정합니다.

Step 2

3

Step 03

3. 요철 흙손 크기 결정

규정에 부합하는 자동 추천 흙손(사각, U홈, V홈)을 선택합니다.

Step 3

4

Step 04

4. 타일 압착 시멘트 제품 선택

폴리머 개질 접착제(C2 S1) 또는 제조사별 대표 제품을 선택합니다.

Step 4

5

Step 05

5. 할증률 및 현장 여건 반영

재단 손실용 10~15% 여유분을 추가하고 대형 타일은 배면 도포를 활성화합니다.

Step 5

6

Step 06

6. 포대 수량 및 소요 수량 확인

올림 처리된 총 포대 구매 수량과 정량 혼합수 비율을 즉시 확인합니다.

Step 6

Quick Answer

타일 1헤베(m²)당 압착시멘트가 얼마나 필요한가요?

A standard 25 kg / 50 lb bag of thinset covers between 35 and 95 sq ft (3.5 to 9 m²) depending heavily on the trowel notch size:

High Yield

소형 모자이크 타일

포대당 7 ~ 9 m²

4~6mm V홈 또는 사각 흙손

Most Common

표준 300×300mm 타일

포대당 5 ~ 6.5 m²

8~10mm 사각 흙손

Heavy Bed

대형 포세린 (600×600mm+)

포대당 3.5 ~ 4.5 m²

12mm 흙손 + 배면 도포

Interactive Estimator

Room Size to Bag Estimator

Adjust Room Size: 150 sq ft

20 sq ft 150 sq ft 350 sq ft 600 sq ft

Bags Needed

4 Bags

포대 (20kg / 25kg 포대)

Total Mortar Weight

200 lb

~91 kg

Mixing Water

5.5 gal

clean cold water

Estimated Cost

$99.96

@ ~$25 per bag

* Based on standard format with 10% waste allowance. Open Full Pro Calculator →

Key Factors Determining Real Mortar Usage:

Trowel Notch Depth

A 12 mm notch applies more than double the volume of a 4 mm notch.

Back-Buttering Requirement

Mandatory for tiles > 15 inches to achieve 80-95% coverage (+15-20% mortar).

Product Density

Lightweight polymer mortars cover identical surface area with less weight.

Substrate & Membranes

Uneven screeds and uncoupling membranes absorb extra mortar.

Technical Standards

톱니 규격별 도포 면적 조견표

Official coverage benchmarks per 25 kg / 50 lb bag across trowel tooth geometries.

Cross-Section Profile CAD Profile

Width: 1/2" (12.7mm) • Depth: 1/2" (12.7mm)

Select Trowel Notch Type:

1/2" × 1/2" Square Notch

Essential for achieving ANSI 80% (dry) and 95% (wet) bond contact.

Coverage / Bag 35 – 45 sq ft

Usage Rate ~1.11 – 1.43 lb/sq ft

Ridge Volume Heavy Volume

Trowel Notch	Profile	Typical Application	Coverage / Bag	Usage (kg/m² or lb/sq ft)	Notes
4 mm / 3/16" V-Notch	V-Notch	Mosaics, glass tile, small wall tiles	8.5 – 10.5 m² (85-100 sq ft)	~2.4 – 2.8 kg/m²	Prevents squeeze-out between narrow joints.
6 mm / 1/4" Square	Square	Tiles up to 20×20 cm (8×8"), subway wall tiles	7.0 – 8.5 m² (75-90 sq ft)	~2.8 – 3.5 kg/m²	Standard notch for residential ceramic tile.
8-10 mm / 3/8" Square	Square	Floor tiles 30×30 cm (12×12"), pavers	5.0 – 6.5 m² (50-65 sq ft)	~3.8 – 5.0 kg/m²	Compensates slight substrate unevenness.
12 mm / 1/2" Square	Square	Large format 30×60, 60×60 cm (LFT)	3.5 – 4.5 m² (35-45 sq ft)	~5.5 – 7.0 kg/m²	Essential for 80% to 95% continuous contact.
15 mm / 3/4" U-Notch	U-Notch	XXL porcelain panels, natural stone	2.8 – 3.5 m² (28-35 sq ft)	~7.0 – 8.8 kg/m²	Eliminates hollow air pockets under heavy tiles.
Euro Slanted Notch	Slanted	Heated floors, outdoor terraces, slabs	3.0 – 4.0 m² (30-40 sq ft)	~6.0 – 8.0 kg/m²	Channels expel trapped air smoothly.

Tool Selection

타일 크기별 흙손 규격 매트릭스

Match your tile dimensions to the recommended notch size and compressed bed thickness:

Tile Size	Tile Type	Notch Size	Profile	Compressed Bed	Usage Rate
Mosaics (1" - 2")	Glass / Ceramic	4 mm / 3/16"	V-Notch	~1.5 mm	Low consumption Prevents squeeze out into grout joints.
Subway & Wall (4×4)	Glazed ceramic	6 mm / 1/4"	Square	~2.0 mm	Moderate Provides non-sag vertical hold.
Floor 30×30 cm (12×12)	Porcelain / Ceramic	8 mm / 3/8"	Square	~3.0 mm	Standard Straight line troweling pattern.
Large Format 30×60 cm (12×24)	Rectified porcelain	12 mm / 1/2"	Square / U	~4.0 mm	High Back-buttering mandatory for 80%+ contact.
Large Square 60×60 cm (24×24)	Polished porcelain	12 mm / Euro	Euro / U	~4.5 mm	Very high Requires medium-bed non-slump mortar.
Wood Plank (20×120 cm)	Plank porcelain	12 mm / Euro	Slanted	~4.5 mm	Very high Install with max 33% offset to prevent lippage.
Uncoupling Membrane (DITRA)	Polyethylene mat	4 mm / 3/16"	V / Square	~1.5 mm under mat	Separate coat (~15 m²/bag) Follow membrane manufacturer specifications.

Format Guide

타일 규격별 소요량 분석

Recommended trowel size, average coverage and installation criteria by format:

Mosaics & Sheets

Up to 5×5 cm

Thin bed prevents squeeze-out between small joints.

요철 흙손 (고대): 4 mm V-Notch

포대당 시공 면적: 8 – 10 m² / bag

압착 후 최종 몰탈 두께: ~1.5 mm

타일 배면 도포 (백버터링): Not required

압착 시멘트 등급: C2 TE S1 Polymer

Subway & Wall Tiles

7.5×15 to 10×30 cm

Non-sag thixotropic hold on vertical walls.

요철 흙손 (고대): 6 mm Square

포대당 시공 면적: 7 – 8.5 m² / bag

압착 후 최종 몰탈 두께: ~2.0 mm

타일 배면 도포 (백버터링): Optional

압착 시멘트 등급: C2 T Non-Sag

Standard 30×30 cm

30×30 cm (12×12")

Classic format with easy bed leveling.

요철 흙손 (고대): 8 mm Square

포대당 시공 면적: 5 – 6.5 m² / bag

압착 후 최종 몰탈 두께: ~3.0 mm

타일 배면 도포 (백버터링): Recommended for uneven backs

압착 시멘트 등급: C2 TE Standard

Large Format 30×60 cm

30×60 cm (12×24")

Back-buttering mandatory to eliminate hollow spots.

요철 흙손 (고대): 12 mm Square

포대당 시공 면적: 3.5 – 4.5 m² / bag

압착 후 최종 몰탈 두께: ~4.0 mm

타일 배면 도포 (백버터링): Mandatory (Double Buttering)

압착 시멘트 등급: C2 S1 Medium-Bed

Large Square 60×60 cm

60×60 cm (24×24")

Heavy tiles require high bond strength.

요철 흙손 (고대): 12 mm or Euro

포대당 시공 면적: 3 – 4 m² / bag

압착 후 최종 몰탈 두께: ~4.5 mm

타일 배면 도포 (백버터링): Mandatory

압착 시멘트 등급: C2 S1 Flexible

Wood-Look Planks

20×120 cm

Install with max 33% offset to prevent lippage.

요철 흙손 (고대): 12 mm Slanted

포대당 시공 면적: 3 – 3.8 m² / bag

압착 후 최종 몰탈 두께: ~4.5 mm

타일 배면 도포 (백버터링): Mandatory

압착 시멘트 등급: C2 S1 Non-Slump

Gauged Porcelain Panels

120×260 cm+

Requires 2-person handling with vacuum suction cups.

요철 흙손 (고대): Euro Slanted

포대당 시공 면적: 2.5 – 3.5 m² / bag

압착 후 최종 몰탈 두께: ~4.0 mm

타일 배면 도포 (백버터링): Double coat floor + slab

압착 시멘트 등급: C2 S2 Ultra-Flexible

Thickness & Bed Dynamics

타일 압착 후 시멘트층의 최종 두께

A common misconception is assuming trowel notch height equals final bed thickness under installed tile.

Interactive Cross-Section

Bond Coverage: Contact: 45% (Uncompressed)

Tile Body (10 mm / 3/8") 3/8" (9.5mm)

Combed Ridges (12 mm / 1/2")

/// SUBSTRATE CONCRETE BASE ///

Bed Thickness: Final Bed: ~3.5 mm (~1/8") Total Elevation: Total Elevation: ~13.5 mm

Physics Simulator

Tile Embedment & Ridge Collapse

Adjust Embedment Pressure:

Embedment Pressure: 0%

0% Fresh Combed 50% Squeezed 100% Full Collapse (95%)

Why Collapse Matters:

Uncompressed ridges leave 50% hollow air channels. Sliding tile collapses ridges into a continuous void-free structural bed.

1 Full Notch Height

Fresh Combed Ridges

Troweled at 45 degrees leaving open air channels.

Stage 01 TCNA A108

2 ~35-45% of Notch

Tile Pressed & Shifted

Ridges collapse sideways expelling air pockets.

Stage 02 TCNA A108

3 ~3.0 - 4.5 mm

Fully Cured Bed

Solid rock-like bond after cementitious hydration.

Stage 03 TCNA A108

Q Can I use thinset to level 15 mm of floor unevenness?

Limit Alert

No. Standard thinset shrinks if applied over 5 mm (1/4"). Use self-leveling underlayment or specialized medium-bed mortar.

Q How to calculate total floor elevation for doors?

Failure Risk

Tile thickness + compressed mortar bed + membrane = total elevation (typically 14 to 18 mm).

Visual Systems

단면도 및 ANSI 판별 엔진

Explore 5-layer uncoupling membrane anatomy and select the right ANSI / EN standard for your project.

Schluter DITRA Cross-Section Click on any layer to inspect technical details:

5-Layer Membrane Installation Anatomy

Click any layer of the uncoupling assembly below to inspect manufacturer specifications and coverage rules:

Uncoupling Membrane (Stress Relief Layer) Per roll

Absorbs substrate shear movements.

Smart Tool

Mortar Specification Wizard

Decision Wizard

Select 3 parameters to determine the exact mortar classification:

1. Tile Type Step 1

2. Substrate Step 2

3. Moisture Exposure Step 3

Recommended Class: ANSI A118.4HT

Modified Large and Heavy Tile (LFT) Mortar

Porcelain large-format tile requires high-polymer modified mortar with non-sag HT performance.

Environment Guide

시공 부위별 요구 조건

Moisture exposure and traffic conditions alter mortar requirements:

High Moisture & Steam

Shower Walls & Cubicles

Eliminate hollow pockets to prevent moisture accumulation.

Contact Required: 95% Minimum Contact

Standard Class: C2 TE / ANSI A118.4T

Recommended Notch: 8 to 10 mm

Consumption Delta: +15% (with back-buttering)

Calculate for Shower →

Continuous Water Stream

Walk-in Shower Floors

Follow slope smoothly toward central drain.

Contact Required: 100% Solid Bed

Standard Class: C2 S1 Waterproof Grade

Recommended Notch: 6 to 8 mm

Consumption Delta: +10% extra mortar

Calculate for Shower Floor →

Dry Interior / Minor Splashes

Kitchen Backsplash

Non-sag paste or mortar keeps tiles aligned.

Contact Required: 80% Contact

Standard Class: C1 T or D2 Mastic

Recommended Notch: 6 mm Square

Consumption Delta: Standard coverage

Calculate for Backsplash →

Heavy Residential Traffic

Living & Hallway Floors

Supports heavy furniture and foot traffic.

Contact Required: 80-90% Contact

Standard Class: C2 TE Standard Flex

Recommended Notch: 10 to 12 mm

Consumption Delta: +10% cutting waste

Calculate for Living Area →

Thermal Expansion

Radiant Heated Floors

Air pockets act as insulation, blocking heat transfer.

Contact Required: 95% Minimum Contact

Standard Class: C2 S1 Highly Flexible

Recommended Notch: 12 mm Square / Euro

Consumption Delta: +15% (encapsulate heating cables)

Calculate for Heated Floor →

Sun, Rain, Freeze-Thaw

Outdoor Patios & Terraces

Trapped water freezes and cracks tiles.

Contact Required: 100% Void-Free Bed

Standard Class: C2 S2 Deformable

Recommended Notch: 12 mm + Back-Buttering

Consumption Delta: +20% for slope leveling

Calculate for Outdoor →

Submerged Water Pressure

Swimming Pools & Fountains

Resistant to chemical chlorine and hydrostatic pressure.

Contact Required: 100% Solid Bed

Standard Class: Epoxy R2 or C2 S2

Recommended Notch: Per tile format + full butter

Consumption Delta: +25% extra consumption

Calculate for Pool →

Rolling Carts & Heavy Footwear

Commercial Retail Floors

Prevents point-load tile cracking under cart wheels.

Contact Required: 95% Contact

Standard Class: C2 S1 Heavy-Duty

Recommended Notch: 12 mm or 15 mm U-Notch

Consumption Delta: +15% reinforcement

Calculate for Commercial →

Substrates & Prep

바탕면 종류별 처리 기준

Substrate porosity, flexibility and moisture movement guide prep and adhesive choice:

Rigidity Check L/360 Compliant

J1

J2

Deflection Rating: L/360 Status: Safe for Tile

TCNA Structural Deflection Standard

Subfloor Deflection Gauge

TCNA requires subfloors to deflect no more than L/360 for ceramic/porcelain and L/720 for natural stone under full live loads:

Joist Spacing:

Tile Type:

Standard Compliance: Standard 3/4" subfloor over 16" o.c. joists is compliant with ANSI A108.01. Direct tile bond acceptable with A118.11 mortar or CBU underlayment.

Standard / L/360

Concrete Slab / Screed

The most rigid and stable base for tile.

Preparation: Clean, dust-free; check residual moisture

Impact on Usage: Standard base (no extra consumption)

Cement Backer Board (CBU)

Standard waterproof backing for showers and bathrooms.

Preparation: Tape joints with alkali-resistant mesh and mortar

Impact on Usage: +5% (board absorbs moisture)

Plywood / Wood Subfloor

Wood moves with humidity; avoid direct bond without membrane.

Preparation: Securely screwed; uncoupling membrane recommended

Impact on Usage: Membrane layer recommended

Uncoupling Membrane (DITRA)

Isolates floor cracks so they never transfer to tile.

Preparation: Embed fleece solidly into fresh mortar

Impact on Usage: Double coat application (+100% total)

Recommended Product: Schluter ALL-SET / C2 TE

C2 S1 Renovation Grade

Tile-Over-Existing-Tile

Saves demolition dust and time during renovations.

Preparation: Degrease, scuff surface and apply bonding primer

Impact on Usage: Requires primer layer

Drywall / Gypsum Board

Suitable only for dry rooms without water spray.

Preparation: Dust-free and primed with acrylic sealer

Impact on Usage: Low consumption on smooth board

소요량에 영향을 주는 현장 요인

On real jobsites, physical conditions deviate from theoretical lab numbers:

01 +15% to -20%

Trowel Angle & Pressure

Troweling at 60 degrees forms full ridges, while a flat 45-degree angle reduces thickness.

Severity Level Moderate

02 +10% to +25%

Tile Back Waffle Pattern

Deep grooves on tile undersides consume mortar to fill hollows.

Severity Level High

03 +15% to +30%

Substrate Unevenness

An unlevel floor forces the setter to thicken the mortar bed.

Severity Level Critical

04 +15% to +20%

Mandatory Back-Buttering

Applying a flat contact skim to large tiles reduces coverage per bag.

Severity Level High

05 +10% loss

Temperature & Air Drafts

Summer heat skins over mortar in the bucket prematurely.

Severity Level Moderate

06 +5% loss

Residue on Bucket & Tools

Mortar adhering to mixing paddles and pail walls.

Severity Level Low

07 +10% to +15%

Diagonal Layout & Cuts

Creates extra perimeter cuts and adjustments.

Severity Level High

08 +30% to +40%

DITRA Membrane Cavities

Filling square dovetail pockets takes extra mortar volume.

Severity Level Critical

Standard Rule Compliant Pass

Target: 80% Simulated: 82%

TCNA A108 Specification Standard

80% vs 95% Mortar Contact Rule

Minimum bond contact requirements to prevent cracked or debonded tiles:

80% Contact Requirement (Dry Interior)

For dry interior floors, at least 80% of tile back must be supported with continuous mortar bed.

2-Step Mortar Calculation for Schluter DITRA

Installing uncoupling membranes requires calculating 2 separate mortar coats:

Layer 1: Under Mat (Substrate to Mat) Layer 1

4 mm / 3/16" V-notch trowel

Yield: ~15 – 18 m² per 25 kg bag

Layer 2: Over Mat (Mat to Tile) Layer 2

10-12 mm notch by tile size

Yield: ~3.5 – 4.5 m² per 25 kg bag

For 20 m² with DITRA, you need ~1.5 bags for the mat + 5 bags for tiles = 7 bags total.

Standards & Specifications

ANSI 타일 시멘트 규격

International performance classifications explained clearly:

C1 / A118.1 Budget

Tier 0: Unmodified

Standard Mortar

For porous ceramic tiles on rigid concrete.

Polymers: Standard

Flexibility: Rigid

Water Resist: Normal

Strength Rating: ★☆☆☆

C2 / A118.4 Standard

Tier 1: Modified

Polymer-Modified Thinset

Industry standard for porcelain and indoor floors.

Polymers: Modified

Flexibility: Medium

Water Resist: Good

Strength Rating: ★★☆☆

C2 S1 / A118.11 Mid-High

Tier 2: Wood-Bond

Deformable Flex Mortar

For large format tiles and heated screeds.

Polymers: High

Flexibility: Flex ≥ 2.5 mm

Water Resist: Very good

Strength Rating: ★★★☆

C2 S2 / A118.15 Premium

Tier 3: Super-Bond Elite

Highly Deformable Super-Bond

For pools, wood floors, facades and gigantic slabs.

Polymers: Maximum

Flexibility: Flex ≥ 5.0 mm

Water Resist: Excellent

Strength Rating: ★★★★

Interactive Metric Matrix

Mechanical Strength Comparison

Click any classification below to dynamically compare shear bond strength, flexural tolerance, and polymer concentration:

Shear Bond Strength 600+ psi (A118.15)

Flexibility (S1/S2) Very High

Polymer Content Maximum

Material	Chemical Base	Best Application	Wet / Exterior Safe	Price Tier
Standard Thinset	Portland Cement + Polymer	Universal floor and wall	Yes / Excellent	$$ (Standard)
Medium-Bed Mortar	Coarse aggregate cement	Tiles > 15" & leveling	Yes / Recommended	$$$ (Medium)
Super-Bond (S2)	Elastomeric polymer	Pools, terraces, wood	Yes / Maximum	$$$$ (Premium)
Tile Mastic (D2)	Water-based acrylic paste	Kitchen backsplashes only	No (dissolves in water)	$$ (Ready mix)
Epoxy Mortar (R2)	2-Part epoxy resin	Commercial kitchens, spas	Yes / Impermeable	$$$$$ (Highest)

Mixing Best Practice

압착시멘트 반죽법 및 적정 배합수

Correct mixing ensures polymers develop maximum shear bond strength:

Phase 01

1. Add Water to Pail First

Always pour clean cold water into the bucket first, then add powder gradually to prevent dry clumps at the bottom.

Phase 02

2. Mix at Low Speed (3–5 min)

Use a drill under 500 RPM. High speed traps air bubbles that weaken tensile bond strength.

Phase 03

3. 10-Minute Slake Time (Mandatory Rest)

Let mortar rest undisturbed for 10 minutes so polymers activate chemically.

Phase 04

4. Remix for 1 Minute – Ready!

Remix for 1 minute without adding any extra water, even if it feels thicker.

숙성 타이머 (10분 슬레이킹)

05:00 Digital Timer

소용량 혼합수 계산기

Calculate exact water in liters or quarts for partial batches:

Accurate Water Ratio

Select Product:

Measurement Mode:

Amount to Mix:

Target Consistency: Target: Creamy Peanut Butter

Quarts:

2.75 qt

Gallons:

0.69 gal

Fluid Oz:

88 fl oz

Liters of Water:

2.60 L

Warning: Excess water ruins bond strength and causes hollow tiles.

Practical Calculations

공간별 실제 계산 예시

Real project scenarios with transparent math. Click 'Load this room' to try:

4 m² (40 sq ft)

Powder Room (30×30 Ceramic)

Formula Calculation:

4 m² + 10% waste = 4.4 m² ÷ 5 m²/bag = 0.88 bags

A single bag easily covers powder rooms.

Trowel: 8 mm Square

Yield Result: Buy: 1 Bag

5 m² (50 sq ft)

Kitchen Backsplash (Subway Tile)

Formula Calculation:

5 m² + 10% = 5.5 m² ÷ 8 m²/bag = 0.69 bags

Non-sag wall mortar.

Trowel: 6 mm Square

Yield Result: Buy: 1 Bag

10 m² (100 sq ft)

Master Bath (30×60 LFT)

Formula Calculation:

10 m² + 10% + 15% back-butter = 12.65 m² ÷ 4 = 3.16 bags

Back-buttering requires 4th bag.

Trowel: 12 mm Square

Yield Result: Buy: 4 Bags

15 m² (150 sq ft)

Walk-in Shower (Floor & Walls)

Formula Calculation:

15 m² effective ÷ ~4 m²/bag = 3.75 bags

High-flex waterproof mortar required.

Trowel: Floor: 6 mm / Wall: 10 mm

Yield Result: Buy: 4 Bags

30 m² (300 sq ft)

Open Kitchen with DITRA

Formula Calculation:

Under mat: 2 bags + on mat: 8 bags = 10 bags

Double layer application for membrane.

Trowel: Under: 4 mm / Over: 12 mm

Yield Result: Buy: 10 Bags

50 m² (500 sq ft)

Basement Floor (60×60 Porcelain)

Formula Calculation:

50 m² + 12% waste + buttering = 65 m² ÷ 3.5 = 18.5 bags

Pallet delivery recommended for this quantity.

Trowel: 12 mm LFT

Yield Result: Buy: 19 Bags

80 m² (800 sq ft)

Whole House (Plank Porcelain)

Formula Calculation:

80 m² + 15% waste = 105 m² ÷ 3.3 = 31.8 bags

Long planks produce more offcut waste.

Trowel: Euro Slanted

Yield Result: Buy: 32 Bags

120 m² (1,200 sq ft)

Commercial Restaurant Floor

Formula Calculation:

120 m² + 10% = 152 m² ÷ 3.8 = 40 bags

C2 S1 heavy duty commercial bond.

Trowel: 12 mm Square

Yield Result: Buy: 40 Bags (1 Tonne)

Manufacturer Archive

제조사별 접착제 사양 데이터베이스

Verified coverage benchmarks and water ratios directly from official Technical Data Sheets (TDS):

Product & Manufacturer	Standard Class	Yield 6 mm (1/4")	Yield 12 mm (1/2")	Water Ratio	Data Sheet
Generic Polymer-Modified Thinset (ANSI A118.4) Generic / Standard Industry Average 50 lb bag	ANSI A118.4 / A118.11	82.5 sq ft	45 sq ft	5–6 qts	기술 데이터 시트 (TDS) ↗
MAPEI Ultraflex 2 Professional Tile Mortar MAPEI 50 lb bag	ANSI A118.4, ANSI A118.11	82.5 sq ft	41.5 sq ft	5–6 qts	기술 데이터 시트 (TDS) ↗
MAPEI Ultraflex LFT Large Format Mortar MAPEI 50 lb bag	ANSI A118.4HT, ANSI A118.11	70 sq ft	40 sq ft	5.5–6 qts	기술 데이터 시트 (TDS) ↗
Custom VersaBond Fortified Thin-Set Mortar Custom Building Products 50 lb bag	ANSI A118.4, ANSI A118.11	90 sq ft	44.5 sq ft	5.5–6 qts	기술 데이터 시트 (TDS) ↗
Custom VersaBond LFT Large Format Mortar Custom Building Products 50 lb bag	ANSI A118.4HT, ANSI A118.11	75 sq ft	38.5 sq ft	5.5–6 qts	기술 데이터 시트 (TDS) ↗
LATICRETE 254 Platinum Multipurpose Thin-Set LATICRETE 50 lb bag	ANSI A118.15, ANSI A118.4, ANSI A118.11	87.5 sq ft	43.5 sq ft	5.25–5.75 qts	기술 데이터 시트 (TDS) ↗
LATICRETE 253 Gold Modified Thin-Set LATICRETE 50 lb bag	ANSI A118.4, ANSI A118.11	85 sq ft	41.5 sq ft	5–5.5 qts	기술 데이터 시트 (TDS) ↗
Schluter ALL-SET Specialized Tile Mortar Schluter Systems 50 lb bag	ANSI A118.4T, ANSI A118.11, ANSI A118.15T	80 sq ft	38.5 sq ft	4.75–5.25 qts	기술 데이터 시트 (TDS) ↗
ARDEX X 5 Flexible Tile and Stone Mortar ARDEX 40 lb bag	ANSI A118.4, ANSI A118.11	70 sq ft	34 sq ft	4.5–5 qts	기술 데이터 시트 (TDS) ↗
TEC Full Flex Premium Polymer-Modified Mortar TEC (H.B. Fuller) 50 lb bag	ANSI A118.4, ANSI A118.11	81.5 sq ft	40 sq ft	5–5.5 qts	기술 데이터 시트 (TDS) ↗