48" x 48" x 18" Whelping Box for Dogs and Puppies, Birthing Pen with Rails
48" x 48" x 18" Whelping Box for Dogs and Puppies, Birthing Pen with Rails
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SmithBuilt

48" x 48" x 18" Whelping Box for Dogs and Puppies, Birthing Pen with Rails

|17 ratings
48" x 48" x 18" Whelping Box for Dogs and Puppies, Birthing Pen with Rails48 x 48 x 18 Whelping Box for Dogs and Puppies Birthing Pen with RailsSmithBuilt 48 x 48 x 18 Whelping Box for Dogs and Puppies Heavy Duty Whelping Pen and Birthing Box with Rails BrownSmithBuilt 48 x 48 x 18 Whelping Box for Dogs and Puppies Heavy Duty Whelping Pen and Birthing Box with Rails TanSmithBuilt 48 x 48 x 18 Whelping Box for Dogs and Puppies Heavy Duty Whelping Pen and Birthing Box with Rails Gray
Size48" x 48"
Actual ColorWhite

Key item features

  • 48” x 48” x 18” Whelping Box
  • Screwless Design for Fast, Hassle-free Setup
  • Integrated door adjusts to three heights 6”, 12”, or 18”
  • 3” Wide Pig Rail with 2-¾” or 4-½” High Adjustable Legs
  • Heavy-duty PVC Construction

Specs

Pet size, SmallAssembled product dimensions (l x w x h), 48.00 x 48.00 x 19.00 inPet playpen type, Playpen CageFeatures, Heavy DutyMaterial, PVCNumber of doors, 0

About this item

Product details

The SmithBuilt whelping box offers a safe, comfortable, and easy-to-clean space for small to medium breed dogs and their pups. Made from heavy-duty PVC, it features smooth, non-porous walls for effortless maintenance. The 18” high walls provide visibility while preventing escapes. Its spacious design includes an adjustable entryway with three height options, and a 3” wide pig rail adds extra safety. Setup is tool-free in under 15 minutes.
  • 48” x 48” x 18” Whelping Box
  • Screwless Design for Fast, Hassle-free Setup
  • Integrated door adjusts to three heights 6”, 12”, or 18”
  • 3” Wide Pig Rail with 2-¾” or 4-½” High Adjustable Legs
  • Heavy-duty PVC Construction
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Pet size

Small

Assembled product dimensions (l x w x h)

48.00 x 48.00 x 19.00 in

Pet playpen type

Playpen Cage

Features

Heavy Duty

Warranty

Warranty information

90 Day Limited Manufacturer Warranty

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.7 out of 5 stars
stars
17 ratings7 reviews
How item rating is calculated
  1. 5 stars88% (15)
  2. 4 stars6% (1)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star6% (1)
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Showing 1-3 of 7 reviews

Oct 21, 2026
Reviewer name: Sam
Item details
Size: 48" x 48"
Color: Brown
Sold and shipped byMix Wholesale
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Couldn't be more pleased

This exceeded my expectations. It was a breeze to put together, is easy to wipe down. So pleased for it to have the inside removable rail for puppy safety. The rail was the main purpose for choosing this whelping box. A complete upgrade from a hard shell shallow swimming pool. You do need to make a waterproof barrier underneath it, but that's easily remedied with a waterproof washable rug or blanket to throw in the wash and have an extra handy. I'm planning to purchase another one of these boxes to have to extend this one. It easily makes the box larger by combining two boxes. Couldn't be more pleased.

Incentivized Review
Helpful?43WYCRD5AXEF15464311194
Oct 6, 2026
Reviewer name: David
Item details
Size: 48" x 48"
Color: White
Sold and shipped byMix Wholesale
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

love it easy too put together and easy too clean

Incentivized Review
Helpful?43WYCRD5AXEF15464311194
Oct 22, 2026
Reviewer name: leanne
Item details
Size: 48" x 48"
Color: White
Sold and shipped byMix Wholesale
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

excellent for puppies

Incentivized Review
Helpful?43WYCRD5AXEF15464311194
Current price is $129.99
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31

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Sold and shipped by Mix Wholesale
4.5634527089072545 out of 5 stars
4.6 stars out of 5, based on 5445 seller reviews(4.6)
Extended holiday returns
Free Holiday returns until Jan 31