Mederra 85''x78''x9'' Wooden Octagon Sandbox Review: Specs, Pros and Cons

What stands out

• 85x78x9 inch octagon shape with 800-1000 lbs sand capacity
• Four integrated benches for seating six to eight children
• Waterproof cover and bottom liner included for protection
• 100% cedar wood construction with angle iron posts

Who it fits

Key specs explained for this sandbox

Material: Cedar wood

Cedar is a dense, natural timber known for resisting rot and insect damage. This material choice means the structure will endure outdoor weather without warping quickly. You benefit from a durable frame that requires less maintenance than softwoods. When comparing playsets, look for solid wood construction over particle board for longevity and structural integrity in high-traffic areas.

Assembled Size: 85 x 78 x 9 inches

The octagonal footprint measures 85 inches by 78 inches, offering a large surface area. This size accommodates multiple children playing simultaneously without crowding. The 9-inch height is low enough for easy access but high enough to contain sand. Compare this to smaller square pits; the octagon shape maximizes usable space within a compact footprint for your backyard.

Sand Capacity: 800-1000 lbs

This capacity indicates the sandbox holds a significant volume of sand, supporting group play. It ensures the sand level remains consistent even with active digging. You will need to purchase separate sand to fill it, as the listing includes the structure only. Larger capacity means fewer refills and a more stable play surface for building castles or burying toys.

Bench Seating: 4 benches

Integrated benches allow adults or older children to sit comfortably along the perimeter. This feature supports social play and supervision without requiring separate furniture. It saves space compared to adding external chairs. When evaluating playsets, built-in seating is a practical addition for family gatherings, keeping everyone engaged in the activity while maintaining a tidy yard area.

Cover Type: Waterproof cover

A waterproof cover protects the sand from rain, debris, and animals when not in use. This keeps the sand dry and hygienic, reducing cleanup time. You benefit from extended sand life and fewer contaminants. Compare this to open pits; a cover is essential for maintaining a clean play environment and preventing mold growth in damp climates.

Design and Build Details

The listing specifies that this sandbox is constructed from 100% cedar wood. Cedar is naturally decay-resistant, which helps the structure withstand outdoor moisture and temperature changes. The wood pieces are connected using angle iron posts, providing a rigid frame. According to the listing, the entire unit features a water-resistant finish. This coating is applied to protect the timber from rain and sun exposure, extending the lifespan of the wood when left outside.

The assembled dimensions are 85 by 78 by 9 inches. This octagonal shape creates a large central play area. The listing states the sandbox can hold between 800 and 1000 pounds of sand. This weight capacity ensures the structure remains stable when filled. Four benches are integrated into the design, allowing six to eight children to sit and play simultaneously. This layout encourages group interaction and keeps seating close to the sand.

Accessories included in the box are a waterproof cover and a bottom liner. The liner sits at the base to keep sand dry and prevent debris from entering. The cover shields the entire unit from rain and animals when not in use. These additions help maintain a clean play environment. The listing notes that the parts are pre-cut and pre-drilled. This design choice simplifies the assembly process, allowing you to put the structure together without complex tools or extensive construction knowledge.

Setup and everyday use

The Mederra sandbox arrives with pre-cut and pre-drilled wooden components to simplify the assembly process. The listing describes the setup as fast and simple, relying on clear instructions rather than complex tools. You connect the cedar panels using angle iron posts, which creates a rigid frame. This construction method ensures the structure remains stable once built. The assembled dimensions are 85 by 78 by 9 inches, creating a large octagonal footprint. This size accommodates six to eight children simultaneously, making it suitable for group play sessions in a backyard or patio setting. The low height of nine inches allows easy access for young kids while keeping the structure compact. For daily maintenance, the product includes a waterproof cover and a bottom liner. The cover protects the sand from rain, debris, and animals, keeping the play area clean and dry. The bottom liner helps retain sand and prevents it from mixing with the ground. The sandbox holds between 800 and 1000 pounds of sand, providing a substantial play volume. The cedar wood features a water-resistant finish, which aids in durability against outdoor elements. You do not need to worry about frequent repairs, as the material is decay-resistant. The inclusion of four benches allows parents or older siblings to sit nearby while supervising play. This setup supports extended outdoor use without requiring constant upkeep. The design prioritizes practical functionality for family gatherings.

Before You Buy This Sandbox

You need sand to use this unit. The listing states it holds 800 to 1000 pounds. You must purchase this separately. The 85 by 78 by 9 inch footprint requires a flat, level surface. Uneven ground can cause instability. You should check your patio or yard for drainage. Standing water can damage the cedar wood over time. The included waterproof cover protects the interior from rain and debris. You must store sand properly when not in use. This large octagon design fits well in spacious backyards. It suits families wanting group play areas. Compare its 4-bench seating to smaller models in this 1-product guide. Ensure your space accommodates the full dimensions. Cedar wood needs occasional sealing to maintain its water-resistant finish. This upkeep extends the lifespan of the structure. Verify that your chosen location allows for the required assembly clearance. The quick assembly feature simplifies setup, but you still need time for preparation. Consider how this unit complements existing playsets in your yard.

Check before you buy

• Verify your patio or yard is perfectly level.
• Purchase 800 to 1000 pounds of play sand.
• Ensure the 85 by 78 inch space is clear.
• Check drainage to prevent water from pooling.

The product at a glance

1

Mederra 85-Inch Octagon Cedar Sandbox

Best for: large group play and durable cedar construction

Material

Cedar wood

Assembled Size

85 x 78 x 9 inches

Cover Type

Waterproof cover

Bench Seating

4 benches

Sand Capacity

800-1000 lbs

Bottom Liner

Included

View on Amazon: Mederra 85-Inch Octagon Cedar Sandbox Affiliate link

The Mederra 85x78 Octagon Cedar Sandbox offers a large play area measuring 85 by 78 inches with 9-inch walls. It holds 800 to 1000 pounds of sand and includes four benches for seating. The unit is built from durable cedar wood and comes with a waterproof cover and bottom liner to protect the sand from weather and debris.

Pros

• Built from 100% cedar wood with a water-resistant finish
• Includes four benches for group seating
• Holds 800 to 1000 lbs of sand
• Comes with a waterproof cover and bottom liner

Cons

• Requires assembly of pre-cut parts
• Limited to gray color option in this size
• No mention of included sand or tools

Good fit if

• You want a large sandbox for multiple children
• You need built-in seating for parents
• You prefer durable cedar wood construction

Skip if

• You need a sandbox with pre-assembled parts
• You require a smaller footprint for tight spaces
• You want a sandbox without a cover

Verdict: Mederra 85x78 Octagon Cedar Sandbox is a spacious option for families who want durable cedar construction and ample seating for group play. It suits backyards where space allows for its large octagon footprint.

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