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Construction guides, UK regulations, and practical tips to help you work smarter on site.

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These practical guides explain the measurements, assumptions and checks behind common estimating and site tasks. Each article gives a repeatable method, points out the mistakes that cause wasted materials or return visits, and links to a relevant calculator where one is available.

Use the worked guidance as a starting point, then confirm current product data, prices, regulations and site conditions before committing to an order or contract. Safety-critical and structural decisions still need the appropriate competent professional.

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Guides & How-To
Radiator Sizing: BTU Guide for Every Room

How to size radiators for each room using BTU calculations. Covers room types, insulation factors, window adjustments, and common sizing mistakes.

20 Mar 20267 min read
radiator-calculatoruvalue-checker
Guides & How-To
Steel Beam Sizes and Weights: A Guide for Builders

Guide to structural steel beam sizes and weights for domestic work, covering RSJs, universal beams, extension projects and essential site checks.

20 Mar 20269 min read
steel-calculatorweight-calculator
Guides & How-To
Timber Span Tables and Joist Sizing Guide

How to size timber joists and rafters using Approved Document A span tables. Covers C16 and C24 timber, floor joists, ceiling joists, and common roof rafters.

20 Mar 20269 min read
timber-span-calculatorstaircase-calculator
Guides & How-To
CIS Tax Deductions Explained for Subcontractors

CIS deductions explained clearly, including rates, registration, verification, monthly returns and reclaiming overpayments as a UK subcontractor.

14 Mar 20269 min read
vat-cis-calculator
Guides & How-To
How to Calculate Concrete for a Shed Base

Work out exactly how much concrete you need for a shed base. Covers volume calculations, mix ratios, ready-mix vs hand mixing, and common shed sizes.

14 Mar 20266 min read
concrete-calculatorweight-calculator
Guides & How-To
How Much Does Scaffolding Cost in the UK?

A practical breakdown of scaffolding costs in the UK. Covers hire vs buy, pricing per metre, common house sizes, scaffold types, and legal requirements.

6 Mar 20266 min read
scaffolding-calculatorworking-at-height
Guides & How-To
How to Measure for Wall and Floor Tiles

Learn how to calculate exactly how many tiles you need. Covers measuring rooms, wastage allowances by layout, tile sizes, grout, and adhesive quantities.

28 Feb 20267 min read
tile-calculatorpatio-calculator
Guides & How-To
How to Calculate Roof Tiles, Felt and Battens

Work out how many roof tiles you need for any roof. Covers pitch factors, tile coverage rates, felt, battens, ridge tiles, and wastage allowances.

22 Feb 20267 min read
roofing-calculator
Guides & How-To
How to Plan a Patio Layout and Calculate Materials

Plan your patio from the ground up. Covers paving types, sub-base, drainage falls, laying patterns, and how to calculate quantities and costs.

14 Feb 20267 min read
patio-calculatorgravel-calculatordrainage-calculator
Guides & How-To
How to Calculate Plaster Quantities for Walls and Ceilings

Work out exactly how much plaster you need. Covers skim, bonding, hardwall, and render with coverage rates per bag and pre-calculated room quantities.

8 Feb 20268 min read
plaster-render-calculatorweight-calculator
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