The Thomson caravan is not the cheapest on the market, and you can see why if you walk down the production line and look under the skin.
The fundamental feature is its "bone structure," the genuine hardwood framing of Malayan Meranti, braced where required by aluminium ties. Hardwood is not only strong and rigid, but it repels damp, is less likely to warp and rot than softer timbers.
The skin is important too. For the outside Thomson uses a heavier gauge of aluminium than most manufacturers, and inside is laid a one-inch thick blanket of mineral wool, before the inner skin is applied. The roof is lined with hardboard because it is easier to shape, the walls panelled in veneered plywood. This is more costly, but besides being aestheti­cally pleasing, it is more durable and lighter in weight.
While walls, end panels and roof are assembled on precision jigs, the building of the caravan starts from the ground up. First with the B. & B. steel chassis, and the Beta hydraulic coupling, which together are the basis of the excellent towing qualities of the T-Line caravan.