What are the Dimensions of a Standard 5 Gallon Bucket?
Five gallon buckets are ubiquitous tools found in many households and worksites. But what exactly are the measurements and dimensions of these versatile containers?
Understanding 5 Gallon Buckets
A 5 gallon bucket is a cylindrical plastic container that holds roughly 5 gallons or about 20 liters. The standard size has been used for decades by manufacturers, meaning most buckets from different brands have similar dimensions.
These tough buckets are made from high density polyethylene (HDPE) plastic. They are widely used for storing and transporting materials ranging from water to tools to livestock feed.
Five gallon buckets are different from 5 gallon pails, which are metal containers used to transport liquids like paint and chemicals. Buckets tend to have handles and a rim for attaching a lid.
When shopping, key considerations are durability, intended use, whether food-grade plastic is needed, and finding lids that fit properly.
Defining 5 gallon buckets and their uses
Five gallon buckets are cylindrical plastic containers that typically hold about 5 gallons or 20 liters. They are manufactured from HDPE plastic which makes them durable, lightweight, and watertight.
Common uses for 5 gallon buckets include:
- Storing dry goods like rice, beans, and flour for emergencies
- Transporting and mixing construction materials like paint, concrete, and mortar
- Storing tools, hardware, and maintenance supplies
- DIY projects like festive lawn ornaments for holidays
- Gardening uses like storing soil, compost and collecting weeds
- Feeding livestock with water or grain
Standard bucket dimensions and capacity
While some variation exists between brands, standard 5 gallon buckets are about 14.5-15.5 inches tall and 11-12 inches wide on top. exact dimensions vary slightly by manufacturer.
The cylindrical shape gives them a capacity of 4.75-5.3 gallons or 18-20 liters when filled to the rim. Leaving 1-2 inches of headspace allows a full 5 gallons.
Buying considerations for 5 gallon buckets
When selecting 5 gallon buckets, key factors include:
- Durability - Thicker plastic lasts longer, especially when storing heavy items
- Intended use - Food-grade buckets are needed for anything consumable
- Lid fit - Match lid size exactly or it can pop off and spill contents
- Handles - Side handles aid lifting while centered handles help pouring
Difference between 5 gallon bucket and 5 gallon pail
5 gallon buckets are made from plastic while 5 gallon pails are metal containers. Pails often have a top pouring spout and flat back for stability. They are popular for solvents, paints, chemicals where fire-resistance is needed.
Key Measurements and Specs
While slight variations exist across brands, 5 gallon buckets share common dimensions and features:
Overall height of 5 gallon bucket
The total height is typically 14 to 15.5 inches. A standard lid adds another 1-2 inches.
Top and bottom diameter
The top opening is around 11-12 inches wide. The bottom base diameter is slightly smaller at about 10-11 inches.
Thickness of plastic
Wall thickness averages .090 to .140 inches. Thicker plastic makes them more rigid and durable.
Handle size and placement
Side handles are usually oval-shaped and around 1 inch wide. Some buckets have a centered circular handle for easier pouring.
Spout opening size
If present, the pouring spout opening is typically 3-4 inches across and located about 2 inches from the top.
Dimensions for Common Uses
Five gallon buckets come in a standard size, but specialized variations exist for different uses:
Storing and transporting liquids
Most buckets work for non-potable liquids like paint or chemicals. Food-grade HDPE is required for any edible contents.
Mixing construction materials
Standard utility buckets allow mixing mortar, concrete, drywall compound etc. Square buckets provide a flat surface.
Storing tools and hardware
A sturdy bucket with lid keeps contents protected. Handles make them easy to carry around.
Gardening and landscaping
Standard round buckets suit most gardening needs. Some have lower side spouts for easy watering.
Feeding livestock
Food-grade buckets work for holding water, grain and feed supplements. Durability is important.
Calculating Volume Capacity
The exact volume of a 5 gallon bucket depends on its dimensions. We can use basic geometry to derive the capacity:
Formula to find volume of cylinder
Volume = p x radius2 x height. For a bucket 12" diameter and 15" high: Volume = 3.14 x (12/2)2 x 15 = 5.73 gallons
Converting volume to gallon capacity
Since 1 US gallon = 231 cubic inches, we can divide the bucket volume in cubic inches by 231 to get the US gallon capacity.
Max fill lines for 5 gallon capacity
Allowing 1-2" of headspace gives a full 5 gallons. A fill line is often printed 2" from the rim.
Lid considerations for full capacity
Snap-on lids reduce capacity slightly. Leave a bit extra headspace or look for a lid with a domed center.
Sizing and Shape Variations
While a standard round bucket is typical, other shapes and sizes exist:
Standard round bucket dimensions
The common cylindrical bucket described in this article with a top diameter of 11-12" and height around 14.5".
Rectangular 5 gallon sizes
Some buckets are rectangular for easier storage on shelves. Typical dimensions are 12" x 12" x 15".
Half-sized and mini buckets
Good for small loads and stacking, these have ~2 gallon capacity and shorter 8-10" height.
Shape differences for specific uses
Square buckets allow efficient stacking and pouring concrete. Oval buckets store long items like tools.
Buying the Right 5 Gallon Bucket
Follow these tips when purchasing 5 gallon buckets:
Where to buy standard 5 gallon buckets
Hardware stores, home centers, industrial supply stores. Many retailers sell online and in bulk.
Food-grade vs utility buckets
Food-grade HDPE is safe for edible contents. Utility grade works for non-food items.
Choosing durability for heavy loads
Opt for thicker walls if hauling tools, concrete etc. Average thickness is .09-.14 inches.
Matching lid size to bucket
Measure across the top opening to get the right lid size. Standard is 11-12" diameter.