Blog
Twelve construction guides spanning structural framing, materials and cost breakdowns, and DIY topics like spotting a load-bearing wall. Each guide includes interactive calculators to help you plan your work.
Spray Foam vs Fiberglass Insulation
Spray foam vs fiberglass insulation compared on R-value per inch, air sealing, moisture, cost, and lifespan, plus a plain rule for when to pick each one.
Retaining Wall Cost Guide
How much does a retaining wall cost? Compare installed prices by wall type, the 4-foot rule that triggers an engineer, and DIY-vs-pro savings.
Types of Concrete Mix
Types of concrete mix by grade and job: UK designated mixes (GEN, FND, RC, PAV), US psi bags, and specialty concretes, with the right type for each pour.
Average Welding Time
Average welding time by joint size and process: arc time versus total job time, with a per-foot reference table for MIG, TIG, and stick fillet welds.
Deck Building Cost Guide
How much does it cost to build a deck? See US price ranges by size and material, the main cost drivers, DIY-vs-pro savings, and resale payback.
Rebar Sizes Chart
A rebar sizes chart with ASTM A615 diameters, weight per foot, and cross-sectional area for #3 to #18 bars, plus how to read and apply each size.
Lumber Sizes Chart
Lumber sizes nominal vs actual: why a 2x4 measures 1½ by 3½ inches, with a full dressed-size chart in inches and mm and what each board builds.
Gutter Sizing Guide
Gutter sizing guide: match K-style or half-round profile to roof area and rainfall intensity, then size downspouts and choose a gutter material that lasts.
Insulation R-Values Explained
Insulation R values explained: what R-value and U-factor mean, how IECC climate zones set minimums, and which materials give the highest R-value per inch.
Tile Adhesive Types Guide
Tile adhesive types compared: thinset, mastic, and epoxy. Modified vs unmodified, substrate matching, trowel notch, cost, and common failure modes.
Welding Cost Estimation Guide
Welding cost estimation by process: MIG, TIG, Stick, and flux-core labour rates, consumables, and equipment costs — plus how to price a complete weld job.
Concrete Mix Ratios Explained
Concrete mix ratios by application — footings, slabs, driveways, and posts. What 1:2:3 means, how the water-cement ratio sets strength, and PSI by mix.
Deck Building Materials List
Deck building materials list from footings to railings — pressure-treated lumber, joists, decking, fasteners, and hardware for a ground-up deck build.
Drywall Estimating Guide
How to estimate drywall sheet by sheet — measuring method, 4x8 vs 4x12 layout, joint compound, tape and screw quantities, and waste factors by room type.
Paint Coverage Rates Guide
Real paint coverage rates by surface type, paint formula, and roller nap — how primer changes the math and what a gallon actually covers versus the label.
Roofing Materials Guide
How to calculate roofing materials step by step — measure roof squares, then count shingle bundles, underlayment, flashing, and nails with a waste factor.
Is Your Wall Load-Bearing?
How to tell if wall is load bearing: five visual clues from joist direction, stud stacking, headers, and the load path to check before any demolition.
Steel Beam vs Wood Beam
Steel beam vs wood beam for residential spans: compare load capacity, cost per foot, fire performance, and installation — plus where LVL fits in.
Truss Types & Pricing
Truss types and pricing by span and cost per linear foot: king post, queen post, Fink, Howe, scissor, and attic residential trusses, with how to pick one.