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Home > Pet Products > Wooden Dog & Puppy Whelping Box 3 Sided Extension Modules XL MAX SIZE

Wooden Dog & Puppy Whelping Box 3 Sided Extension Modules XL MAX SIZE

Wooden Dog & Puppy Whelping Box 3 Sided Extension Modules XL MAX SIZE
3 sided extension module Classic Deep whelping box with additional module Smaller sized Box and extension joined All lined up Whleping Box with Floor
Size Option
Fitted Solid Floor

3 Sided Wooden Dog & Puppy Whelping Box/Pen Extension Modules

The easy way to extend your whelping box, to give more space for your puppies, making them into puppy pens with these 3 sided modules.
See Detailed Images

Assembly no nails, no screws, just slide the parts together.

New Improved 18mm (2cm planed) Board thickness as standard

PLEASE NOTE - we recommend a single board is kept in place joining the two compartmets together as this will make sure the box is not pushed out of shape.

Available in the following Sizes: (2 x posts + 2 x full sides + 1 x extra board supplied)

  • 2 x posts + 5 boards for 30cm high whelping boxes 
  • 2 x posts + 7 boards for 45cm high whelping boxes
  • 2 x posts + 9 boards for 60cm high whelping boxes
  1. XL MAX Std overall 30 x 150 x 150cm
  2. XL MAX Deep overall 45 x 150 x 150cm
  3. XL MAX EXTRA DEEP overall 60 x 150 x 150cm
  4. XL NARROW Std overall  30 x 150 x 120cm
  5. XL NARROW DEEP overall 45 x 150 x 120cm
  6. XL NARROW EXTRA DEEP overall 60 x 150 x 120cm
  • Easy clean in regular use. Can be dismantled for deep cleaning - and reassembled quickly
  • Made from hard wearing, long lasting fully planed FSC wood
  • Packs away very small when not in use

PLEASE NOTE - The XL NARROW Extension modules connect to the short side - if you want it to fix to the Long side please contact us for a price

Information about our wood is in FAQs. The wood is hand dipped in Croma Non-Toxic wood protection, but these items are available without treatment if you request when ordering. The treatment is safe for all animals, and children.

We can offer ‘special’ sizes with different heights if required. Please contact us either at or +44 (0)1254 820088

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