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Build-A-Barrel 100 Gallon Rain Barrel Kit

Item #: BAB100GAL

List price: $299.95

Our price: $284.95 You save $15.00 (5%)


The elegant and simple design of the Build-A-Barrel system provides a customizable rainwater harvesting solution. It is easy to install and can collect and store up to 100 gallons of rainwater. read more

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Lead time: 2-3 Business Days

List price: $299.95

Our price: $284.95


Build-A-Barrel fits and blends perfectly into every type of landscape. Constructed using 'wood-like' panels made of UV resistant HDPE textured plastic that easily assemble together. Each Build-A-Barrel includes a heavy-duty liner, fittings and a diverter kit.

The square design of the Build-a-Barrel tank provides a shelf for planters or other gardening accessories. It is easy to install and assembles in minutes. The small footprint of this rain barrel makes it a great option for smaller spaces.

Features & Benefits:

  • 100-gallon collection and storing capacity
  • Panels built from rigid UV and freeze-proof engineered polypropylene and recycled plastic
  • High-flow spigot with garden hose thread for easy access to stored water

What you’ll get with each kit:

  • Sixteen 18”x18”x1” panels
  • One 100 gallon Liner made of 2 ply, 6 mil food safe and low-density polyethylene
  • One Diverter
  • One High-flow spigot
  • All the fittings and hardware needed for installation


1 Year Limited Manufacturer's Warranty

100% Satisfaction Guarantee

We want you to be completely satisfied with every purchase you make. If you are in any way dissatisfied with a product you ordered, we'll exchange it, replace it or refund your money within 30 days of purchase. Simply email us the problem, and we'll take care of you. Certain products have extended warranties (up to 50 years!) that are listed on the particular product page. Please call us at 1-888-451-6752 if you need further clarification.

Additional Information

Capacity 100 gallons at maximum capacity
Weight 39lbs. empty
Dimensions 35" x 18" x 35"
Key Feature Modular rainwater collection system
Origin Made in the U.S.A.
Shipping Dimensions 21" x 19" x 19"

Shipping Information

Shipping Dimensions:
21" x 19" x 19"
Shipping Details:
Insured against damage or loss while in transit
This Product Ships To:
US Lower 48
Ships Via:
Fedex or UPS

Questions about the Build-A-Barrel 100 Gallon Rain Barrel Kit

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  • From Chelsey at 12/27/16 11:52 PM
    • Can I avoid cutting my gutters with this system? I live in a rental and can't make changes to rental property.
    • Unfortunately the gutter will need to be cut to house the diverter, unless there is a removable piece already that is above the height of the rain barrel.
    • Do you find this question helpful?  Yes  No

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  • No-hassle, 30 day returns
  • No sales tax
  • Quick shipping
  • Secure shopping (SSL, PCI, McAfee Secure)
  • In business since 2000
  • A tree planted for every order with the Trees for the Future Foundation
  • Member of Better Business Bureau, Green America, and US EPA Watersense
  • Carbon-neutral, Family-owned business that promotes sustainability!
Maximum capacity in grey - holds up to 100 gal. Click to Enlarge
Maximum capacity in grey - holds up to 100 gal. 

More Views

  • Chair setup in grey - holds up to 75 gal.
  • Kit contents (panels shown in tan)
  • Maximum capacity in grey - holds up to 100 gal.
  • Slim setup in tan - holds up to 75 gal.
  • Maximum capacity in brown - holds up to 100 gal.
  • Maximum capacity in grey - holds up to 100 gal.
Product Video
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