Yard & Slab — Jobsite Material Estimate

Precision US Contractor & Building Material Calculations (yardandslab.com)

Date: October 28, 2026

Standards: US Imperial (ASTM / Quikrete / IRC)

100% US Imperial Standard: All formulas calibrated for US Retail SKUs (80lb/60lb Bags, Cubic Yards, US Tons & Gallons)
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Drywall Sheet & Joint Compound Estimator

Calculate 4x8 vs 4x12 drywall sheets, joint compound gallons, paper tape rolls, and drywall screws for any room.

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📐 Drywall Area & Finish Specifications

800 sq ft
100 sq ft 2,000 sq ft 4,000 sq ft
💡 Pro Tip: Hang sheets horizontally with staggered joints across 16" on-center studs. Using 4×12 sheets reduces butt-joints by up to 33%, giving a much smoother finish.
Required Drywall Sheets

28 Sheets (4x8)

Joint Compound (Mud)

60 Gal

14 × 4.5-gal buckets

Includes 10% cut waste Tape: 3 roll(s) (500') Screws: 6 box(es) (1-lb)

Drywall Staggered Joint Layout

28 × 4x8 Sheets
Drywall Sheet #1 (4x8) Drywall Sheet #2 (4x8) Drywall Sheet #3 (Staggered Seam) Sheet #4 Blue Lines = Taped & Mudded Recessed Seams

🛒 Drywall Materials Checklist

4x8 1/2" Sheetrock Gypsum Panels Standard residential walls
28 sheets Check Home Depot ›
Sheetrock All-Purpose Joint Compound 4.5 gallon pre-mixed bucket
14 bucket(s) 60 total gal
500-ft Paper Joint Tape Cross-fibered reinforcement tape
3 roll(s) Check Home Depot ›
1-1/4" Bugle Head Coarse Screws 1-lb box (~150 screws)
6 box(es) Wood stud fastening
👷‍♀️

Hanging & finishing 28 drywall sheets?

Tape and mudding ceilings requires professional drywall stilts and automatic taping tools for a seamless finish.

✓ Matching pre-screened drywall contractors in ZIP !
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📐 Engineering Principles & Formulas

All calculations adhere strictly to US Imperial standards and standard retail SKU yields (Quikrete, Home Depot, Lowe's, ASTM standards):

Formulas verified against US contractor standards and material packaging specifications.

Pre-Solved Dimension Calculators

15 Pre-Calculated Sizes

Jump directly to your exact dimensions with pre-solved material quantities and instant answers:

How Many Sheets of Drywall for a 200 sq ft bathroom / laundry? › How Many Sheets of Drywall for a 400 sq ft small bedroom? › How Many Sheets of Drywall for a 600 sq ft standard bedroom? › How Many Sheets of Drywall for a 800 sq ft master bedroom? › How Many Sheets of Drywall for a 1,000 sq ft living room? › How Many Sheets of Drywall for a 1,200 sq ft open concept living? › How Many Sheets of Drywall for a 1,500 sq ft two car garage? › How Many Sheets of Drywall for a 2,000 sq ft full basement finish? › How Many Sheets of Drywall for a 2,500 sq ft large basement remodel? › How Many Sheets of Drywall for a 600 sq ft bedroom 4x12 sheets? › How Many Sheets of Drywall for a 800 sq ft master bedroom 4x12 sheets? › How Many Sheets of Drywall for a 1,000 sq ft living room 4x12 sheets? › How Many Sheets of Drywall for a 1,500 sq ft two car garage 4x12 sheets? › How Many Sheets of Drywall for a 2,000 sq ft basement 4x12 sheets? › How Many Sheets of Drywall for a 800 sq ft level 5 smooth finish? ›

🔗 Free Contractor Website Embed Widget

Contractors, builders, and suppliers can embed this interactive Drywall Sheet & Joint Compound Estimator on their website for free.

<iframe src="https://yardandslab.com/embed/drywall-calculator" width="100%" height="650" frameborder="0" style="border:1px solid #e2e8f0;border-radius:12px;"></iframe>

❓ Frequently Asked Questions: Drywall Sheet & Joint Compound Estimator

Yes. Every calculation outputs standard US construction packaging and measurements: cubic yards, 40lb/60lb/80lb Quikrete bags, US short tons (2,000 lbs), fluid ounces, gallons, and linear feet matching Home Depot and Lowe's retail inventory.
Yes. Calculators default to a contractor-standard 10% waste factor to accommodate form flex, uneven subgrades, and spillage. You can adjust this to 5% or 15% using the interactive input controls.
Generic calculators rely on basic geometric boxes without considering physical building realities: corrugated pipe displacement in French drains, actual nominal post sizes (3.5" for 4x4, not 4.0"), 15% compaction factors for crushed aggregate, and IECC US Climate Zones.
Yes! Click the "Print / PDF" button on any calculator to generate a clean, branded one-page materials shopping list formatted for mobile or paper printout at the lumberyard.