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HardHatCalc

Blog

How-to guides, cost breakdowns, and material comparisons for construction and renovation projects. Each guide includes interactive calculators to help you plan your work.

Materials & Costs

Roofing Materials Guide

Learn how to calculate roofing materials step by step — shingles, underlayment, flashing, and nails with waste factors for any roof size.

10 min read
Structural Guides

Steel Beam vs Wood Beam

Steel beam vs wood beam for residential spans: compare load capacity, cost per foot, fire ratings, and installation to pick the right one.

9 min read
Structural Guides

Truss Types & Pricing

A guide to truss types and pricing in 2026: king post, queen post, Fink, Howe, scissor, and attic trusses with costs per linear foot.

15 min read
DIY Tips

Is Your Wall Load-Bearing?

Not sure how to tell if wall is load bearing? Use these five visual clues — joist direction, stacking, and framing — before starting demolition.

10 min read
Materials & Costs

Paint Coverage Rates Guide

Actual paint coverage rates by surface type, paint formula, and application method. Stop trusting the label — here is what a gallon really covers.

9 min read
Materials & Costs

Drywall Estimating Guide

Learn how to estimate drywall sheet by sheet for any room — measurement method, layout strategy, finishing materials, and waste factors.

13 min read
Structural Guides

Concrete Mix Ratios Explained

Concrete mix ratios by application: footings, slabs, driveways, and posts. Understand what 1:2:3 means and how water-cement ratio affects strength.

13 min read
DIY Tips

Deck Building Materials List

Your deck building materials list from footings to railings. Covers lumber, fasteners, hardware, and quantities for a ground-up deck project.

16 min read
Materials & Costs

Insulation R-Values Explained

Insulation R values explained: what they mean, how climate zones set minimums, and which materials deliver the best thermal resistance per inch.

11 min read
Materials & Costs

Gutter Sizing Guide

Gutter sizing guide: match gutter profile to roof area and rainfall intensity. K-style vs half-round, materials, and downspout spacing explained.

8 min read
Materials & Costs

Tile Adhesive Types Guide

Tile adhesive types compared: thinset vs mastic vs epoxy. Covers modified vs unmodified, substrate matching, costs, and common failure modes.

9 min read
Materials & Costs

Welding Cost Estimation Guide

Welding cost estimation broken down by process. MIG, TIG, Stick, and flux-core labor rates, consumables, equipment costs, and project pricing.

9 min read
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