Single twist and double twist barbed wire serve similar purposes but have distinct characteristics:

1.Design:

• Single Twist Barbed Wire: This type has a single wire twisted around the barbs. The barbs are placed at intervals along a single strand of wire.
• Double Twist Barbed Wire: In this design, two wire strands are twisted together with barbs placed at intervals. The double twist provides added strength and durability.

2.Strength and Durability:

• Single Twist Barbed Wire: Generally, single twist barbed wire is less durable and may come apart more easily when compared to its double twist counterpart.
• Double Twist Barbed Wire: The double-twisted design makes this type of barbed wire more durable and resistant to coming apart, even if one of the wires were to break.

3.Installation:

• Single Twist Barbed Wire: May be slightly easier and quicker to install due to its simpler design.
• Double Twist Barbed Wire: May require a bit more effort to install given the double twisted design.

4.Cost:

• Single Twist Barbed Wire: Usually cheaper due to less material usage and simpler manufacturing process.
• Double Twist Barbed Wire: May be costlier owing to its enhanced durability and the amount of material used.

5.Maintenance:

• Single Twist Barbed Wire: May require more maintenance over time as it's prone to untwisting or breaking.
• Double Twist Barbed Wire: Requires less maintenance due to its robust design and better resistance to wear and tear.

6.Customized Size

• No. of turns of coil: 68
  Diameter of coil: 1 Meter
  Distance b/w barbs : 60.325 mm
  Length of barbs: 15.81mm
  Weight= 25 Kg Approx
  Surface: ElectroGalvanizing + Bitumen Paint (Both)
  Packing: Each bundle to be packed in Hessian Cloth

• Double twist barbed wire
  Material: Galvanised steel sheet and wire or stainless steel sheet and wire.
  Twist method: double twist.
  Finish: hot dipped galvanised.
  Barbed length: 22mm
  Colour: Silver
  Razor Barbed Type: cross razor
  Barbed distance: 6"
  Specification: wire gauge (SWG) 12# x 12#
  Coil oitide diameter: 700mm (70cm)
  Length: 10m - 12m per roll

• Barbed coil wire with great protection for fencing purposes (Each roll has total length of 400m)
  Material: Galvanized steel
  Twin strand "continuous torsion" type construction
  Construction: The barbs shall have four points and shall be formed by twisting two-point wires, each two turns, tightly around both line wires making altogether four complete turns.
  Colour: Silver
  Spacing between barbs: 70 - 80 mm
  Continuous Wire Diameter: 2.5 mm
  Wire Guard: 1.4 - 2.6 mm
  The weight of the barbed wire (g/m): 120 – 155
  The diameter of the bundle: 25- 35 cm
  Surface treatment: P.V.C. coated
  Razor Type: Cross Razor
  Length of the wire in a bundle (Minimum) : 400 Meters
  Reel size: approx. 400 m
  Reel weight: approx. 50 kg
  The wire to be distributed with matching galvanized
  steel nails for its installation

Both types serve as deterrents and security measures, with the choice between the two often coming down to budget, the level of security required, and personal preference.