Understanding the Block Style Letter Contoh Surat Block Style

The block style (or full block) is the most common format for business letters in Indonesia and many Englishspeaking countries. Its name comes from the fact that every part of the letteraddress, salutation, body, closing, and signatureis aligned to the left margin, creating a clean, rectangular block of text. This guide explains the essential components, layout rules, and provides a readytouse example.

Key Characteristics of the Block Style

• Leftaligned text only: No indentation for paragraphs; each new paragraph begins at the left margin.
• Singlespaced lines within paragraphs: A blank line separates each paragraph.
• Uniform margins: Typically 2.5cm (1inch) on all sides, though 3cm (1.2in) is also acceptable.
• Fullwidth date line: The date appears at the top left, aligned with the rest of the text.
• Signature line: Space is left for a handwritten signature, followed by the typed name and title.

Structure of a Block Letter

1. Senders Address (optional if letterhead is used)
2. Date
3. Recipients Address
4. Reference/Subject Line (optional but common in formal letters)
5. Salutation
6. Body divided into introductory, main, and closing paragraphs
7. Complimentary Close (e.g., Sincerely,)
8. Signature (handwritten) and typed name with position
9. Enclosures (if any) noted at the very bottom

Formatting Tips

• Use a professional font (Arial, Calibri, Times New Roman) sized 11pt or 12pt.
• Keep the letter concise; most business letters are no longer than one page.
• Proofread for grammar, spelling, and consistency of dates and numbers.
• If you are using a letterhead, omit the senders address and possibly the date line if the head includes it.

Sample Contoh Surat Block Style

PT. Maju BersamaJl. Merdeka No. 45Jakarta 10110Indonesia12 June 2026Mr. Ahmad RizaHuman Resources ManagerPT. Sinar UtamaJl. Sudirman No. 12Jakarta 10220IndonesiaSubject: Application for the Position of Marketing ExecutiveDear Mr. Riza,I am writing to express my interest in the Marketing Executive position advertised on your companys website on 5 June 2026. With a Bachelors degree in Business Administration and three years of experience in digital marketing, I am confident that my skill set aligns with the requirements of the role.During my tenure at PT. Kreatif Media, I led a team that increased online engagement by 35% and boosted conversion rates by 20% through targeted socialmedia campaigns and SEO optimization. My responsibilities included market research, content planning, and performance analyticsactivities that closely mirror the duties outlined in your job description.I am particularly attracted to PT. Sinar Utama because of its reputation for innovative product launches and its commitment to sustainable business practices. I look forward to the opportunity to contribute to your marketing strategies and help achieve the companys growth objectives.Thank you for considering my application. I have attached my rsum and copies of relevant certifications for your review. I am available for an interview at your convenience and can be reached by phone at +6281234567890 or via email at ahmad@example.com.Sincerely,[Handwritten signature]Irwan SaputraMarketing AnalystPhone: +6281234567890Email: irwan.saputra@email.comEnclosure: Curriculum Vitae, Certifications        

Common Mistakes to Avoid

• Indenting paragraphs: This defeats the block styles leftaligned principle.
• Using multiple fonts or colors: Keep the appearance uniform and professional.
• Omitting a blank line between paragraphs: The visual separation aids readability.
• Incorrect date format: In Indonesia, the preferred format is day month year (e.g., 12 June 2026).
• Leaving out a reference line when required: For formal requests, a subject line clarifies the purpose immediately.

When to Use Block Style

The block style is ideal for:

• Job applications and cover letters
• Official business correspondence (e.g., invoices, notices)
• Requests for information or proposals
• Any formal communication where clarity and professionalism are essential

By following the guidelines above, you can produce a clean, effective contoh surat block style that meets both Indonesian and international business standards.

For further reading, consider checking resources such as the Indonesia Business English Guide or the Balance Careers Letter Formats.