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Welcome to Calders & Grandidge

With over 100 years' experience, Calders & Grandidge is one of the oldest and most well respected names in the UK pressure treated timber sector

  • Our Products

    Calders & Grandidge is one of the leading suppliers of pressure treated timber poles in the UK. Our connection with timber poles dates back to the 1930s when the booming telecommunications industry necessitated the use of telegraph and transmission poles to support the nations overhead cabling.

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  • About Us

    Calders & Grandidge is one of the oldest and most well respected names in the UK pressure treated timber sector. Operating from our 46 acre site in Boston, Lincolnshire, we have over 100 years experience providing creosoted timber poles, railway sleepers, gates and fencing.

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  • Our History

    The history of the Calder family in connection with timber dates back to the 1820s when a coal merchant in Dunkeld opened a saw mill. Of his two sons, one, named Charles developed the business and shipped timber grown in Scotland to the North of England where it was used chiefly in the mines.

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    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

    Calders & Grandidge is the UK's leading manufacturer of timber utility poles for the communications and power industries, track timbers for the railways, as well as a wide range of fencing, gates and landscape timbers for the agricultural, equine, local authority and domestic markets.

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    Latest From Twitter

    Woldmarsh Producers
    @Woldmarsh Producers

    Call the fuel team on 01507 602396 to place your order. woldmarsh.com Find out more

    28 Sep
    WPA
    @WPA

    Fabulous beach huts at Mudeford, Dorset made from #Medite #Tricoya Extreme cladding and pressure treated wood pic.twitter.com/JU0EdUJkZG Find out more

    22 hrs