Construction Guides & Standards
Construction guides and industry standards used in our calculators for accurate material estimation and professional construction planning.
Deck Construction Guide: Joists, Beams, Footings & IRC Code
Deck-building reference based on 2021 IRC R507 and AWC DCA 6: joist spans, beam spans, footings, ledger fasteners, decking, stairs, and railings.
Read Guide →Deck Stain Coverage: How Much Per Square Foot
Deck stain coverage rates by wood condition, stain type, and application method. Manufacturer specs for railings, vertical surfaces, and multi-coat systems.
Read Guide →DIY Backsplash Tile Installation: The Complete Guide
Step-by-step backsplash tile installation from surface prep through sealing. Substrate, layout, thinset, grouting, and 13 mistakes to avoid.
Read Guide →Insulation R-Value Requirements by Climate Zone (IECC)
R-value requirements, material costs, coverage rates, and installation standards for residential insulation. Fiberglass, cellulose, and spray foam compared.
Read Guide →Drywall Screw Guide: How Many Screws Per Sheet?
GA-216 screw spacing, coarse vs fine thread selection, correct lengths by drywall thickness, and exact screw counts per 4×8 sheet. Per ASTM C1002.
Read Guide →Floor Tile Installation Guide: TCNA & ANSI Standards
Install floor tile right — L/360 deflection, plywood subfloors, PEI/DCOF ratings, thinset coverage, waterproofing, and expansion joints. TCNA & ANSI.
Read Guide →Mortar & Thinset Guide: ANSI Class, Trowel Size & Bag Count
Pick the right ANSI mortar (A118.1/.4/.11/.15/.3 or A136.1 mastic) for substrate and tile, choose a trowel notch, and calculate bag count.
Read Guide →Stairs Building Guide: IRC Code & Stringer Span Tables
Residential stair guide — IRC R311.7 / 2024 R318.7 limits, three master equations, AWC DCA 6 stringer spans, six layouts, and 10 inspection fails.
Read Guide →HardiePlank Installation Guide: HZ5 vs HZ10, Nailing & Trim
HardiePlank installation rules from James Hardie HS11119 + ESR-2290: HZ5/HZ10 differences, fastening, butt joints, HardieTrim, kickout flashing, warranty.
Read Guide →How to Use a Wood Privacy Fence Calculator (Video Tutorial)
Step-by-step video tutorial: estimate materials for a wood privacy fence. Inputs and results for posts, pickets, rails, and concrete bags.
Read Guide →How to Use a Chain Link Fence Calculator (Video Tutorial)
Video walkthrough: estimate materials for a chain link fence. Inputs and results for posts, fabric rolls, tension wire, and concrete bags.
Read Guide →How to Use a Split Rail Fence Calculator (Video Tutorial)
Video tutorial: estimate posts and rails for a split rail fence. Walk through the calculator inputs and results for a 2-rail or 3-rail build.
Read Guide →Metal Siding Guide: Gauge, Profiles, Cost & Install
Metal siding by gauge, profile, and coating. Galvalume vs aluminum, PVDF vs SMP, HVHZ fastener density. Per MCA, ASTM A653/A792, AAMA, IRC R703.4.
Read Guide →How to Measure Your Room & Calculate Square Footage
How to measure walls, ceilings, and trim for accurate paint estimates. Covers L-shaped rooms, stairwells, angled ceilings, and window and door deductions.
Read Guide →When You Need Primer: Drywall, Wood & Bare Surface Guide
When you actually need primer — and when you don't. Industry guidelines for new drywall, bare wood, stain blocking, major color changes, and shiny surfaces.
Read Guide →Dark to Light Color Changes: Professional Guide
How to paint over dark colors without streaks or bleed-through. Covers tinted primer selection, coat counts, and pro techniques for dramatic color changes.
Read Guide →Choosing the Right Paint Sheen: Flat to Gloss
How to choose the right paint sheen. Covers flat, eggshell, satin, semi-gloss, and gloss — with durability, washability, and light-reflection tips.
Read Guide →Textured Wall Painting: Coverage Rates for Stucco & Popcorn
Coverage rates and techniques for painting textured walls. Covers knockdown, orange peel, popcorn, and stucco — with extra gallons per texture.
Read Guide →Complete Interior Painting Guide: Prep to Cleanup
Interior painting guide — prep, priming, cutting in, rolling technique, and cleanup. Covers order of operations, mistakes, and finish selection.
Read Guide →Landscape Material Guide: Gravel, Stone, Sand & Topsoil
Calculate cubic yards, tons, and bags for gravel, crushed stone, sand, decomposed granite, river rock, topsoil, and riprap. ASTM D448 / AASHTO M43.
Read Guide →Interior Doors Guide: Rough Openings, Hardware & IRC
Per-door rough openings, hinges, locksets, casing LF, and IRC flags for pre-hung, slab, bifold, bypass, barn, pocket, French, and Dutch doors.
Read Guide →Paver & Patio Installation: The Complete Technical Guide
Concrete, brick, bluestone, travertine, and porcelain pavers — sand-set, mortar-set, pedestal, and PICP installs. ICPI Tech Spec 2/3/4/18.
Read Guide →How to Build a Retaining Wall: Step-by-Step DIY Guide
Step-by-step how-to: build a 4-ft segmental retaining wall the right way — base prep, drainage, geogrid, and cap install. Per NCMA & IRC R404.4.
Read Guide →How Much Gravel Do I Need? Tons, Yards & Depth Guide
Calculate gravel for driveways, patios, and French drains — cubic yards to tons, bag counts, depth by use, density tables, and the compaction factor.
Read Guide →How Many Rolls of Wallpaper Do I Need? Sizing Guide
How many rolls of wallpaper to buy — bolts vs single rolls, pattern-repeat waste, half-drop math, and door/window deductions, with a worked example.
Read Guide →How Much Carpet Do I Need? Roll Width & Waste Guide
How much carpet to buy — roll-width math and fill-piece seams, waste by carpet type, pad rolls, tackless and seam tape, plus stair runner math.
Read Guide →How Much Subfloor Do I Need? Sheets, Screws & Glue
How much subfloor to buy — span rating by joist spacing, sheet counts, the 6-in/12-in screw schedule, glue coverage, and cement board for tile.
Read Guide →Window Replacement Guide: Egress, U-Factor & Sizing
How to size and spec replacement windows — egress net clear opening, where tempered glass is required, U-factor and SHGC by climate zone.
Read Guide →How Much Asphalt Do I Need? Driveway Tonnage Guide
How much asphalt to order for a driveway — the full layer stack, HMA tonnage, base by soil and climate, compaction factor, and drainage.
Read Guide →How Much Rebar Do I Need? Size, Spacing & Weight
How much rebar to order — bar sizes, spacing and cover defaults, the +1 grid formula, lap splices, and weight per foot from ASTM A615.
Read Guide →French Drain Guide: Gravel, Pipe, Fabric & Slope
How to build a French drain — #57 stone, 4″ perforated pipe holes-down, the burrito wrap, the 1% slope minimum, and how much gravel per foot.
Read Guide →How to Plan a Home Remodel: Phase-by-Phase Guide
The complete remodel planning playbook — scope, budget ratios, permits, build order, inspections, and closeout, with IRC citations and DIY-vs-hire calls.
Read Guide →Remodel Budget Guide: Labor Ratios & Contingency
How to budget a remodel with ratios that hold up — the two-thirds labor rule, hard vs. soft costs, and how much contingency to carry by project risk.
Read Guide →Remodel Permits & Code: What Needs One (IRC Guide)
When a remodel needs a permit and when it does not — plus citable IRC numbers for ceiling height, egress, stairs, and the smoke-alarm retrofit trigger.
Read Guide →Remodel Order of Operations & Timeline Guide
The correct remodel sequence — demo to punch list — with rough-in order, inspection gates, material lead times, and realistic durations by project type.
Read Guide →Attic Ventilation Guide: IRC R806 NFA Math & Vents
How much attic ventilation you need — IRC R806.2 1/150 vs 1/300 rules, real NFA values by vent type, intake-vs-exhaust balance, and the mixing mistake.
Read Guide →Framing Rough Openings: Headers, Kings & Jacks
How to frame a rough opening — R.O. sizing rules, IRC header tables, jack and king stud counts, cripples, and the dropped-header span reduction.
Read Guide →Drywall Types & Finish Levels: Code Spec Guide
Type X vs moisture-resistant vs abuse-rated drywall, GA-214 finish levels 0–5, framing spacing rules, control joints, and where code dictates each choice.
Read Guide →Concrete Strength: Water Ratio, Weather & Additives
What actually decides concrete strength — the water-cement ratio, ACI cold and hot weather rules, air entrainment, admixtures, fibers, and base prep.
Read Guide →Countertop Materials Compared: Quartz to Soapstone
Every major countertop material compared — heat, scratch, and stain resistance, sealing schedules, and food-safety ratings, with the standards behind each.
Read Guide →Countertop Planning: Sizes, Overhangs & Seam Rules
Standard countertop heights and depths, NKBA landings and seating overhangs, NSI cantilever limits, slab sizes, seam placement rules, and cutout requirements.
Read Guide →Remodel ROI Guide: What Returns at Resale (2025)
Which remodels pay back at resale — 2025 Cost vs. Value and NAR Remodeling Impact percentages, why exterior projects dominate, and how to use the data.
Read Guide →How Much Sod Do I Need? Pallets, Rolls & Prep Guide
Measure any lawn for sod, choose the right grass, and order the correct pallets and rolls — plus ground prep, the laying pattern, and watering the first weeks.
Read Guide →How to Sealcoat a Driveway: Coverage, Cracks & Cost
How much driveway sealer you need, coal-tar bans by state, the crack-width fix, two-coat technique, cure windows, failure modes, and cost ranges.
Read Guide →How to Space Board & Batten (+ Wainscoting Height)
Solve even batten spacing with a batten in every corner, get the right wainscoting height, size picture-frame boxes, pick MDF vs PVC, and install it.
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