Calders & Grandidge

The company holds a Royal Warrant for the supply of Pressure Treated Timber products to HM the Queen.

A booklet published circa 1947 lists an impressive range of products obtainable from the Calders Group: turnery, barrel staves, scaffold boards, factory paving blocks, sleepers and crossings, pit props and mining timber, constructional and building timbers: telegraph poles and telegraph arms, beer and mineral water cases and crates, imported and home grown softwoods and hardwoods, boxes for export, horticulture and agriculture, floorings – parquet, strip and block, wagon bottoms and sheeting’s, railway keys and ferrules, fencing and gates.

[3] In the 1980s it was a main supplier of wooden joists and rafters for house builders, known as the Calders system.

In 2000 Meyer International PLC was acquired by the multi-national French construction products company Saint-Gobain.

In January 2023 the business was transferred to the newly incorporated Calders and Grandidge (Boston) Ltd (Reg - 12512544) which remains a subsidiary of Saint-Gobain Construction Products Ltd.