Guides & Insights
Choose materials with clarity.
Selection advice, assembly checks and purchasing guides for your next project.
Buyer tools: enquiry sheet and purchasing calculators

Sandwich panel weight calculator: kg/m² and panel mass
Calculate sandwich panel weight per m² and per panel from the skins and core. Add extras separately and check which inputs are missing before requesting a quote.

Planning shower niches with backer board: openings and cut lists
Plan niche openings, finished dimensions, board pieces and supporting details before ordering. Includes a practical cut-list and approval checklist.

Foam backer boards with mosaics or large tiles: what to verify
Compare published minimum tile formats from two named foam-board systems, distinguish mosaic sheets from individual tiles, and calculate finish weight per square metre.

Tile backer boards for electric heating: avoid the wrong panel
Distinguish electric heating underlay from grooved water-pipe panels. Check the complete tiled floor, board surface and heater instructions before buying.

Tile backer board thickness for walls: start with the support
Choose wall backer thickness by stud spacing or solid backing. See a published 12.5 mm versus 19 mm example, plus wall-height and fixture details.

How to calculate XPS board quantities, packs and volume
Turn a measured insulation area into boards, packs and material volume. Keep cutting allowance and pack rounding separate with a worked example.
Cover images are AI-generated illustrations of materials and applications.