175mm (155mm Finished) Standard Softwood Internal Door Lining Set

175mm (155mm Finished) Standard Softwood Internal Door Lining Set is a practical and cost-effective solution for forming a complete internal door frame, specifically suited to 5 inch timber stud walls in line with building regulations. Manufactured from responsibly sourced softwood, this lining set provides a stable and durable base for hanging internal doors and achieving a clean, professional finish.

Supplied unfinished, the door lining can be painted, stained, or varnished to suit your interior décor. Please note: this lining set does not include door stops, allowing you to fit separate stops or alternative systems to suit your installation. Door furniture is not included.

The reversible head design makes this internal door lining suitable for both 762mm and 838mm doors, the most common UK internal door sizes. This flexibility makes it ideal for new builds, refurbishments, and replacement door projects.

Manufactured from PEFC-certified whitewood spruce, this internal door lining is designed for interior use and offers a reliable balance of strength, consistency, and ease of installation. Suitable for both professional installers and DIY users.

Each lining set includes two uprights and one head, with assembly required.

Product details:
Location: Internal
Product height: 2010mm
Product thickness: 28mm
Material: PEFC certified whitewood spruce
Finish: Supplied unfinished

Typical size use:
Nominal 32mm x 175mm / Finished 27.5mm x 155mm – Suitable for 5 inch timber stud walls to meet building regulations

Other widths are available to suit alternative wall constructions and internal door applications.