Edexcel GCSE Design and Technology · 1DT0
Specification 6.7.3 · Paper 1
Revise: Fabrication and Assembly MethodsA plain seam joins pieces with their right sides together. Sew along the specified allowance, open out the pieces and press the allowances open. A 1.5 cm allowance is common in garment construction, but the pattern determines the required width.