I am writing to apply for the Interior Designer position at your company. A wellwritten, customized cover letter should include the 'company's name, position, and other identifiers included in the job description.How to write a cover letter for any Interior Designer job? Craft the perfect cover letter with our professional examples and templates. Struggling to find your next interior design job? Your interior designer cover letter must highlight your creative prowess. Demonstrate your understanding of space, color, and materials. Learn how to write an interior designer cover letter. Get expert tips and downloadable cover letter examples for all levels of experience. A cover letter should be a one-page, roughly 400-word document — a personal introduction that highlights your experience, skills and qualifications.