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Sandlock Square Sandbox with Cover

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Sandlock Sandboxes Square Sandbox with Cover


  • Removable corner seating
  • Can be easily disassembled for relocation
  • Heavy duty ground barrier bottom material keeps weeds and insects out
  • Heavy duty fitted cover easily attaches to sandbox in corners with shock cord design secure attachment
  • Cover lock
  • UV stabilizers
  • Simple interlocking construction
  • Constructed of HDPE plastic
  • Attractive design and color scheme
  • 1 Year limited warranty

Product Details:

  • Product Type: Sandbox
  • Material: Plastic
  • Pieces Included: Sandbox frame, seats, ground barrier, cover, stakes
  • Weather Resistant: Yes
  • Toys Included: No
  • Sandbox Cover Included: Yes
  • Sand Included: No
  • Product Warranty: 1 year


10' x 10' Size

  • Overall: 10" D x 117" W x 117" L
  • Overall Product Weight: 100lbs

5' x 5' Size

  • Overall: 10" D x 59" W x 59" L
  • Overall Product Weight: 38lbs

Sandlock Sandboxes Square Sandbox with Cover

Weights & Dimensions

10' x 10' Size

  • Overall: 10" D x 117" W x 117" L
  • Sandbox Interior: 110.5" W x 110.5" L
  • Overall Product Weight: 100lbs
  • Sandbox: 116.5" W x 116.5" L

5' x 5' Size

  • Overall: 10" D x 59" W x 59" L
  • Sandbox Interior: 52.25" W x 52.25" L
  • Overall Product Weight: 38lbs
  • Sandbox: 58.25" W x 58.25" L

Additional Weights & Dimensions

  • Seat: 11" H x 9" D


Product Type: SandboxFinish: Green/ Tan
Hardware Finish: ChromeMaterial: Plastic
  • Material Details: High density Polyethylene
Number of Items Included: 5Pieces Included: Sandbox frame, seats, ground barrier, cover, stakes
Weather Resistant: YesWater Resistant: Yes
Rust Resistant: YesFade Resistant: Yes
UV Resistant: YesNon Toxic: Yes
Sandbox Shape: SquareToys Included: No
Gender: UnisexAge Group: 5 to 6 Years; 7 to 8 Years; 9 to 10 Years; 11 to 12 Years; 13+ Years; 3 to 4 Years; 2 Years
Sandbox Cover Included: Yes
  • Sandbox Cover Material: Plastic
  • Water Resistant Sandbox Cover: Yes
Sandbox Liner Included: Yes
Bottomless Sandbox: YesCanopy Included: No
Storage Included: NoLegs Included: No
Sand Included: NoCompatibility: Solid surface strap kit for playground/patio installation
Commercial Use: YesProduct Care: Always install cover when sandbox is not in use
Country of Manufacture: ChinaSeating Included: Yes
  • Number of Seats Included (5' x 5' Size): 2
  • Seating Weight Capacity: 250 Pounds
  • Seat Material: Plastic
  • Number of Seats Included (10' x 10' Size): 5


Installation Required: Yes
  • Tools Needed for Installation: Hammer for stakes
Additional Parts Required: Yes
  • Parts Needed: For installing sandbox on solid surface a strap kit is sold separately


Product Warranty: 1 year 


ASTM Compliant: Yes 

About the Manufacturer

SandLock Sandbox Company is the leading manufacturer of Sandboxes, Sandtables, Sensory Tables, Covers, & Accessories. Sandboxes & Sandtables earned the 2007 & 2008 Teachers’ Choice Award. “SandLock really took some time to think about what a parent is looking for in an outside toy for their child.” (2008 Teachers’ Choice Award for the Family Program – Learning Magazine) SandLock has reinvented the traditional Sandbox. The sandboxes are truly the easiest to assemble, made from durable plastic, and are backed by a 10 Year Warranty. Keeping sand dry and free of debris is a must in any playground or backyard. SandLock’s Covers are made from heavy-duty vinyl material with sewn in shock-cord to easily secure cover in place.

Sandlock Sandboxes Square Sandbox with Cover

Questions & Answers (4)


“I want to be sure that no weeds will be pushing up through the bottom of this sandbox. Can you assure me that this won't happen?” asked by Eddie

"Hi Eddie, the ground barrier is made of a semi-permeable plastic that allows moisture to pass through it but not insects or weeds." Neil from Wayfair


“Hey. How much sand do you recommend to be put in the 5x5 model?” asked by Jarvis

"Hello Jarvis, we recommend approximately 950lbs of sand for the 5x5 model." Tauny from Wayfair


“Hey. I was wondering if the corner seats in the pictures were included.” asked by Charlie

"Hi Charlie, the Sandlock 60" x 60" Sandbox does come with two removable corner seats as well as a cover. In addition extra seats are available in corner versions as well as longer bench seats." Travis from Wayfair


“Hi, can this sandbox be placed on a patio surface?” asked by Brady

"Hello Brady, it can be placed on a patio, but should be strapped down to hold in place." Abby from Wayfair

Still have questions about this product? We're here to help

When you buy a Sandlock Square Sandbox with Cover online from Wayfair Supply, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Sandlock Part #: CSG-6060 here. If you have any questions about your purchase or any other Sandboxes & Sand Toys product for sale our customer service representatives are available to help.Whether you just want to buy a Sandlock Square Sandbox with Cover or shop for your entire business, Wayfair Supply has everything you need.
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Customer Reviews

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Tell us what you think about the Square Sandbox with Cover. It will help us provide you with better products in the future and help your fellow Wayfair shoppers make better purchases.

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Average Overall Rating
(based on 87 reviews)

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Daily use since purchase

from Alexandria, VA – Verified Buyer

I did a lot of research before deciding on this sandbox. I was considering boxes that had sunshades, but decided to monitor the sun cover in the backyard for shade at particular points in the day, rather than buying something poorly made strictly for the sunshade. `The cover and seats were what sold me on it. It is deeper than the average turtle sandbox, which makes it much better for my 2-year old that likes to dig. It looks like we'll get lots of wear out of the box, as the 8-year old next door is jealous. We filled it with the play sand from Home Depot, which has a bigger grain and is easy to brush off. The seats are sturdy enough for adults. The area where we set it up is not totally flat, but all seems to be working out. We haven't had it too long so I can't speak to durability, but it appears to be a well made product that will stand the test of time (I hate buying cheap stuff multiple times...I prefer to buy quality once). And it's one thing that he doesn't have at daycare that he has at home, which makes it special. The most time consuming part of setting it up was getting the bags of sand to the backyard. Check out the pics to get a realistic idea of size. Pros: Super quick to set up Cons: Bottom not solid

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from Massachusetts – Verified Buyer

Originally researched sandboxes online and didn't like what I read in the reviews not even for the more expensive ones. So decided to look into building it myself, from wood. Once you factor everything in, it may come in around $200. Went back online and found the Sandlock, commercial grade rated sandboxes. Decided to go this route, for the easy of assembly, as well as the durability of plastic vs. wood. These boxes are dropped shipped from the manufacturer. The shipping box was slightly ripped, but all components were there. Box was easy to assemble and looks great kids love it.

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Love it!

from Derry, NH – Verified Buyer

My kids absolutely love the sandbox. It was so easy to assemble & I'm thrilled with how it looks in the yard. My only complaint would be the two inch or so 'lip' in the front. I'm not sure why it's necessary. Kids can obviously get in and out without that opening, so all it really does it provide a place for sand to sneak out all over the yard. Overall though, LOVE the sandbox and would buy it again!

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Sandbox Fun

from Willow, AK – Verified Buyer

This is a great sandbox. Easy to assemble with good quality construction and all the pieces that you need, including ground cover and box cover. The 5' by 5' is a perfect size for a couple toddlers. Looking forward to fun times with our grandson. Pros: Good materials and easy assembly a little expensive but not too for the quality. Cons: Shipping too costly given other items shipped for less of similar weight and size even if to Alaska.

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great purchase

from NJ – Verified Buyer

i bought this to replace the wooden sandbox i bought the year before that did not fair very well after a year of the elements. i love that it snaps together and comes apart so easily and that it has a tarp like bottom rather than the plastic my wooden sandbox had. it was easy to move new my new home and all 3 of my little boys love it. the cover it great and keeps everything out. would definitely recommend

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from Evington, VA – Verified Buyer

Spent a lot of time looking at different boxes, brands, and reviews. Would go with this again. Do not have anything to compare it to but quality is great! Even the cover is just fine. Read in some reviews that the cover is bad but I disagree. Purchased for sons third birthday and do not regret! We just finished building our new home with nice new landscaping and the box fits right in. Definitely recommend!

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Super High Quality and Attractive!

from Los Angeles, CA – Verified Buyer

In my opinion, this is the best sandbox out there! Looks great! SO easy to assemble (just make sure you follow the directions pertaining to the numbers on each piece. The side pieces look the same but they are not.)! So high quality! No maintenance required - no need to waterproof. Very sturdy.

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so far so good

from indianapolis, in – Verified Buyer

One benefit that I hadn't considered is the ease of putting it away for the winter. RAther than leaving it in the yard to weather, we'll be able to pack it away in the attic as each piece disassembles and is very light. Still sturdy enough when placed together to handle the sand (about 18 5# bags worth) and kids). Thought it would be the perfect size for two kids to not get in each other's way, and it should be. But human nature - the kids still play in the exact same spot with half the sandbox unused. Maybe a barrier in the next version?! The seats are a very nice bonus and the cover is very sturdy. I didn't realize the cover would be a bit loose - they recommend putting an exercise-sized ball in the middle of the box to prop up the cover. That way water drains off. Good idea but we don't have anything similar. If I'd known about that I would have suggested it as a kids birthday gift.

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Very Pleased

from Auburn, AL – Verified Buyer

We have only had the sandbox for a short time, but it seems to be a well-constructed product. It was easy to assemble, and from the looks of it, the sand box should hold up well. It's the perfect size for several young children. Pros: Easy assembly

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Awesome sand box

from Beaverton, OR – Verified Buyer

The plastic used to make this is commercial quality. The top has been durable thus far--we've had outside in the Northwest since Spring rains, through a warm summer, and now with the cooler weather and it seems to be holding up really well-I saw this a a frequent complaint in reviews, but so far, handles the Northwest really well. Pros: Commercial Quality Cons: none so far

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Square Sandbox with Cover is also sometimes listed under the following manufacturer numbers: CSG-120120, CSG-6060