Lakeside Products MagnaBox Professional Puppy Whelping Box & Dog Birthing Pen

"I love it. It does not require any tools to assemble, will store flat, and clean up is super easy too. I highly recommend it." - Kathy A.

Lakeside Products - Product #: LS-MB-24
  • $279.00

Only -3 left!

Lakeside Products Dog/Cat Birthing Box, Whelping Kennel, and Weaning Pen

The next generation professional whelping box

Lakeside Products Puppy Whelping Pen & Dog Birthing Box. For Home or Veterinarian use. Great for cats and small breed dogs all the way up to large or even giant dogs. Simple assembly, easy to clean, portable, and durable HDPE plastic whelping crates.

The MagnaBox Professional Whelping Box is simple to clean and keep clean.  FDA approved, HDPE plastic (a common material for kitchen cutting boards) is UV resistant and will not rust, stain, or discolor. Unlike wood and other plastic whelping boxes, the MagnaBox whelping box has no cracks, crevices, porous or painted surfaces to retain contamination. 

Product Features

  • Made of UV resistant HDPE Plastic that will not rust, stain, or discolor
  • Unique hook and slot connectors make assembly easy, fast, and durable
  • No tools or fasteners required!
  • No crevice, cracks, porous or painted surfaces to retain contamination
  • Easy to clean and sanitize
  • Easy to move and relocate without disassembly 
  • "No Bottom" design allows for your choice of whelping pads, heaters, or alternate flooring
  • Safe Self supporting puppy rails
  • Adjustable door features unique 1/3 and 2/3 height sliding doors
  • No Velcro, adhesive, or paint required.
  • *Note: Whelping pads are sold separately

Quality solid materials along with unique hook and slot connectors and a lightly textured surface make cleanup a breeze.  Easily wipes clean with a rag and sanitizing solution and when disassembled can be quickly cleaned and sanitized with a power washer.  There are no plastic welds, hidden slots, fasteners, or corrugations that capture and retain contamination and are nearly impossible to clean and sanitize.

Assembly requires no tools and no fasteners.  No small parts to insert while aligning bulky components. No velcro to wear out or replace.  No adhesive or painting required.

Simply align, insert, and slide into position the unique hook and slot joints in the corners and the puppy rails.  Puppy rails are self supporting so there are no legs or supports to trap and endanger puppies.  MagnaBox whelping box can be used without the puppy rails however the puppy rails cannot be removed without disassembling the whelping box.  Once assembled, the MagnaBox whelping box can be lifted as an assembly and moved for cleaning or relocation.

The MagnaBox whelping box has a 'no bottom' design which allows for your choice of whelping pads, heaters or alternate flooring.

Whelping pads made from veterinary bedding (fleece) are recommended for flooring (sold separately). The MagnaBox whelping box sits directly on the oversize pad holding it in place and discouraging digging and clumping.  Excellent soft absorbent surface to comfort puppies while keeping them dry and providing outstanding grip for small paws.

The entrance door features unique 1/3 and 2/3 height sliding doors which allow you to adjust the height of the opening depending on the size of the puppies.

Optional heat lamp stand is available and mounts with the same hook and slot design.  Heat lamp of your choice can be clamped or mounted to the stand.

Optional playpen/Extension is available and attaches to the front of the MagnaBox whelping box. The MagnaPens are similar in size to the MagnaBox and doubles the containment area.

Available in the following five standard sizes:

Size Dimensions Length Height Inside Dimensions Weight
XX-Small 24" 24" 12" 21 1/2 x 21 3/4" 25 lbs
Extra Small 30" 30" 15" 27 1/4" x 27 3/4" 35 lbs
Small 36" 36" 18" 32 3/4" x 33 1/4" 50 lbs
Medium 42" 42" 18" 39 1/4" x 39 3/4 60 lbs
Large 48" 48" 20" 45 1/4" x 45 3/4" 77 lbs
Extra Large 54" 54" 24" 51 1/4" x 51 3/4" 104 lbs


Lakeside Products 1 Year Warranty Information

Lakeside Products warrants to the original purchaser this product to be free of defects in materials and workmanship for period of one year from the date of purchase (proof of purchase is required). Specific exclusions from this warranty include damage caused by accident, improper installation or abuse, including damage caused by pets.

Assembly Instructions

MagnaBox The Next Generation Professional Whelping Box Assembly Instructions PDF

For further assembly instructions and care & maintenance instructions, please see the Installation & Assembly tab.


Ask a Question
  • What is the height and depth of the anti crush rails?

    Hello, I am not sure which size of whelping box you referred to hence I got you all of the sizes' rail width and height from the ground:

    Box Size Rail width Space below Rail MB-24 1 3/4 1 3/4 MB-30 2 3/4 2 3/4 MB-36 3         3 MB-42 3         3 1/2 MB-48 3 1/4 4 MB-54 4         5

    I hope you found this helpful.

    Thank you,
    Chris E.


MagnaBox Assembly Instructions Downloadable:

MagnaBox Quick Assembly Overview


MagnaBox In-depth Assembly Guide

Lakeside Products (LS) - Ships UPS Ground from Des Moines, IA:

  • Orders need to be processed and packed; ships within 2-3 business day when in stock
  • Additional transit time will depend on your location, based on the Shipping Map below.


    LTL (less-than-truckload) Freight is used when shipments are 120 lb+ or for oversized equipment, which results in a truck with a large container delivering your order. Our freight carrier will contact you once your order makes it to the distribution center closest to the delivery address specified, and set up an appointment time for delivery.

    Pet Pro Supply Co. Free LTL Freight Shipping - Curbside Delivery

    Our standard Free Freight Shipping option for LTL deliveries is curbside, which is to a delivery to a Commercial Address and does not include a liftgate. If your order is to be shipped freight, you will have the option to specify whether the item will be delivered to a Residential, Limited Access, or Commercial address. If there is no option to select a shipping location, then this cost is already included in the price.

    We strongly recommend adding the optional Liftgate for all deliveries to locations without a loading dock or forklift.

    Freight Delivery Locations

    This option specifies whether the delivery location is a Commercial, Residential, Residential Business, or a Limited Access address.

    • Commercial - These addresses are those defined by our freight carriers and/or zoned by local municipalities as commercial sites. Typically these addresses are zoned as commercial real estate or are used exclusively for business. Most commercial sites have tractor-trailer access and a loading dock.
    • Residential - If the address used a residence, select this option. This includes Apartment/Condo complexes and dormitories.
    • Residential Business - Any business being operated from a home, apartment, or other dwelling where people live on the premises is considered to be a Residential Business.
    • Limited Access - Locations where deliveries are restricted, limited, or very far from a distribution center. Examples Include:
      • Place of Worship
      • Restricted Areas - Secure Research Facilities, Military Bases/Installations, Correctional Facilities, Government Buildings
      • Farms, Ranches, and Rural Areas
      • Recreational Areas - Camps, Parks, Fairs, Carnivals, etc.
      • Individual Storage Units
      • Sites - Convention Centers, Construction Sites, Mines
      • Schools and Universities
      • Commercial establishments not open to the walk-in public during normal business hours

    Freight Liftgate

    A liftgate is a hydraulic lift that is attached to the back of a truck that can lower freight to ground level. Freight carriers prevent their drivers from assisting with the unloading of heavy equipment other than using a liftgate to ground level. We highly recommend any delivery address without a loading dock, select this option.

    However, please know that for certain very long items, such as Kennels over 6' in length, a Liftgate will not be able to bring the entire order down to ground level. Please have the necessary manpower available to receive your items with limited delay to the driver. 

    Customer Reviews

    Based on 7 reviews
    Absolutely perfect!

    I’ve used my own homemade wooden whelping boxes for our foster puppies, but they were heavy, awkward, and didn’t clean well. Wow, what a pleasure to have this pen! The slotted design is incredibly clever and is super easy to put together and take apart to store flat. The smooth surface is like a cutting board, so it’s really easy to clean, and I feel secure knowing it will be disinfected for the next fosters. The slotted door is also ingenious to grow higher with the puppies. I can’t recommend this pen enough!


    We have 3 different sizes and our rescue dogs love them. Easy to sterilize

    The best

    The last whelping we will ever need. Set was easy both box and play pen

    Great product

    Great product. Heavy duty, easy to clean. Would recommend to any one having a litter of puppies. Plan to use over and over.

    Worth purchasing

    We love the whelping box. It is our first litter. Easy to set up, sturdy and easy to keep clean. Hoping to purchase the add on. The product will last forever.

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