Tower Dry Lining Wall Box - 35 mm - 1 Gang

The Tower TDL3501 is a 35 mm deep, 1 Gang dry lining box designed for secure electrical installati...

Best current price£0.71from City Plumbing GB

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City Plumbing GBElecstore Yellow 1G 35Mm Dry Lining Box Tdl3501
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B&QB&Q - Tdl3501 Dry Lining Wall Box 35 mm Deep 1 Gang
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Product Information

Full details

The Tower TDL3501 is an essential electrical component designed for electricians and DIY enthusiasts who need a reliable, recessed mounting solution for 1-gang wiring accessories in dry lining walls. Its primary benefit is the combination of a large front flange for secure, flush-fitting installations and high-strength nylon lugs for maximum stability. One caveat is that users must ensure their wall board thickness falls strictly between 6.35 mm and 15 mm for the adjustable lugs to engage correctly.

All features

Model Part Number227754
BrandElecstore

Extended Product Information

FAQs

What is the maximum board thickness this box can handle?

This box is designed for board thicknesses between 6.35 mm and 15 mm.

Can I use this box in a brick or masonry wall?

No, this is a dry lining box specifically designed for stud partitions or plasterboard walls.

Does this box come with screws?

The box is designed for use with standard accessory screws provided with your socket or switch plate.

How many knockouts are available?

It features two 20 mm side knockouts and one 25 mm base knockout.

What is the primary material of the lugs?

The adjustable lugs are manufactured from high-strength yellow nylon.

Is this box fire-rated?

This model is a standard dry lining box; please check local building regulations if fire-rated containment is required for your specific installation.

Troubleshooting

Box feels loose in the plasterboard

Verify that the board thickness is within the 6.35 mm to 15 mm range and ensure the nylon lugs are fully rotated until they bite into the board material.

Accessory plate does not sit flush against the wall

Check for debris behind the flange or ensure the hole in the plasterboard is not oversized; a loose box may lean inward, preventing a flush fit.

Pros and Cons

Pros

  • High-strength nylon lugs prevent cracking during installation
  • Large flange ensures a flush, aesthetic fit
  • Multiple knockout sizes simplify cable management
  • Robust construction for long-term reliability

Cons

  • Limited to board thicknesses up to 15 mm
  • Not suitable for heavy-duty industrial mounting
  • Depth may be restrictive for deep smart home modules

Setup, Compatibility & Care

To install the box, first ensure the wall cavity is clear and the cutout in the plasterboard is precise. Insert the box into the hole and rotate the yellow nylon lugs until they are firmly secured against the inner face of the board. The unit is compatible with any standard UK 1-gang accessory plate. No special maintenance is required, though you should check the tightness of the lugs after several years if the accessory plate is frequently removed or adjusted.

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