The 300 Gallon Doorway Water Tank from Norwesco is a 29" x 50" polyethylene tank built to pass through a standard doorway for water storage where access is the constraint - basements, utility rooms, and interior installations where a wider tank simply will not fit. At 300 gallons in a 29-inch-wide footprint, it threads the needle between volume and clearance. Listed at the product price before freight, with LTL freight quoted live to your ZIP.
Will this tank work for my site?
The tank holds 300 gallons of water, which weighs roughly 2,502 pounds when full. Its 29-inch width is the whole point: it clears a standard doorway so you can place it where a fatter vertical tank would never go. The decision usually comes down to two profiles of the same 300-gallon Norwesco tank - this 29" x 50" model is the wider, shorter one that clears the doorway, while the 25" x 65" version is taller and narrower for tight widths but needs more ceiling height. Pick by whichever is your real bottleneck. The polyethylene shell carries a 1.5 specific gravity rating, meaning it is rated for contents up to 1.5 times the density of water - a maximum rated contents weight near 3,753 pounds. For straight water service that is built-in headroom, so you are not buying a tank that is marginal on weight.
Fittings and floor loading
Fitting and outlet configuration is not specified in this listing - see the technical drawing on this page for port locations and sizes, and call 866-418-1777 to confirm before ordering so the tank arrives plumbed the way your install needs. The other number to nail down before delivery is floor loading: a filled tank puts roughly 2,502 pounds onto a footprint about 29 inches across. On a basement or utility-room floor that concentrated load is the single most likely failure point for an interior install, so verify your floor or pad is level and load-rated for it. The Tank Sizing Calculator and Tank Sizing Guide walk through capacity, footprint, and weight together.
How does it ship?
This tank ships LTL freight from the Norwesco plant in Burnet, Texas. Because doorway tanks are tall and rigid, they move on a pallet by motor freight rather than parcel, and the cost depends on your distance from Burnet and your delivery conditions - freight is the biggest unknown on a 2,500-pound-plus LTL tank, so price it before you commit. Get an exact number with the Freight Cost Estimator, or call us at 866-418-1777 and we will quote it to your ZIP.
The mistake to avoid
The common error with doorway tanks is measuring the door but forgetting the path beyond it - the turn into the hallway, the stairwell landing, the swing of the door itself. A 29-inch-wide tank clears a 30-inch door, but a tight 90-degree turn in a narrow corridor can stop it cold. Map the full route, not just the entry point, before the truck arrives. The other miss is treating the 1.5 specific gravity rating as a license for any liquid; that figure governs density and weight, not chemical compatibility, and this listing is set up for water service.
Ready to order, or want a hand matching the tank to your space? Use the Freight Cost Estimator for a live LTL quote to your ZIP, dig into the details in our 300 Gallon Doorway Water Tank buyer's guide, and reach our team at 866-418-1777. See the technical drawing on this page for exact dimensions.
3 Year Warranty
