Calders & Grandidge

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Welcome to Calders & Grandidge

Calders & Grandidge is one of the oldest established and respected names in the UK Pressure Treated Timber Sector with it's own 46 acre site in Boston, Lincolnshire.

Company News

Recent Client Testimonial

"Just to say the capping arrived safely and has been fitted today. I am very pleased with the quality and the service provided by your company. More than happy to recommend you to anyone requiring timber supplies."


Calder's achieves Business Continuity Management Systems Accreditation

We are pleased to announce our successful accreditation to the bsi Business Continuity Management System (BCMS) ISO 22301:2012


Boston Swimming Pool Communal Gardens Officially Opened.

Counsellor Paul Kenny, the Mayor of Boston, officially opened the Communal Garden at Boston Swimming Pool, Lincolnshire on Thursday 15th August 2013.


General Enquiries

To send us an enquiry, please complete the form below. If you would like to speak to us about a general enquiry, call us on 01205 358 866

Our Products

  • Gates

    Our wooden gates are all hand built and carry the Royal Warrant.

  • Fencing

    The perfect component for home or equestrian post and rail fencing, or for use in agriculture.

  • Sleeper

    Our sleepers can be used to give your garden that little something extra.


Declarations of Performance

The Construction Products Regulation came into place on July 1st 2013. The regulation requires us to make available our declarations of performance.